diff --git a/lnrpc/autopilotrpc/log.go b/lnrpc/autopilotrpc/log.go
index e844bcab9..113486d0d 100644
--- a/lnrpc/autopilotrpc/log.go
+++ b/lnrpc/autopilotrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This means the
+// log is a logger that is initialized with no output filters. This means the
 // package will not perform any logging by default until the caller requests
 // it.
 var log btclog.Logger
@@ -21,25 +21,9 @@ func DisableLog() {
 	UseLogger(btclog.Disabled)
 }
 
-// UseLogger uses a specified Logger to output package logging info.  This
+// UseLogger uses a specified Logger to output package logging info. This
 // should be used in preference to SetLogWriter if the caller is also using
 // btclog.
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/chainrpc/log.go b/lnrpc/chainrpc/log.go
index 0d47ea971..6b68e324a 100644
--- a/lnrpc/chainrpc/log.go
+++ b/lnrpc/chainrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This
+// log is a logger that is initialized with no output filters. This
 // means the package will not perform any logging by default until the caller
 // requests it.
 var log btclog.Logger
@@ -27,19 +27,3 @@ func DisableLog() {
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/invoicesrpc/log.go b/lnrpc/invoicesrpc/log.go
index d29c73780..8429ee51c 100644
--- a/lnrpc/invoicesrpc/log.go
+++ b/lnrpc/invoicesrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This means the
+// log is a logger that is initialized with no output filters. This means the
 // package will not perform any logging by default until the caller requests
 // it.
 var log btclog.Logger
@@ -21,7 +21,7 @@ func DisableLog() {
 	UseLogger(btclog.Disabled)
 }
 
-// UseLogger uses a specified Logger to output package logging info.  This
+// UseLogger uses a specified Logger to output package logging info. This
 // should be used in preference to SetLogWriter if the caller is also using
 // btclog.
 func UseLogger(logger btclog.Logger) {
diff --git a/lnrpc/peersrpc/log.go b/lnrpc/peersrpc/log.go
index 13bc6c354..3fd59789c 100644
--- a/lnrpc/peersrpc/log.go
+++ b/lnrpc/peersrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This means the
+// log is a logger that is initialized with no output filters. This means the
 // package will not perform any logging by default until the caller requests
 // it.
 var log btclog.Logger
@@ -24,25 +24,9 @@ func DisableLog() {
 	UseLogger(btclog.Disabled)
 }
 
-// UseLogger uses a specified Logger to output package logging info.  This
+// UseLogger uses a specified Logger to output package logging info. This
 // should be used in preference to SetLogWriter if the caller is also using
 // btclog.
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/routerrpc/log.go b/lnrpc/routerrpc/log.go
index 6cbd8bea3..5c4ad01d8 100644
--- a/lnrpc/routerrpc/log.go
+++ b/lnrpc/routerrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This
+// log is a logger that is initialized with no output filters. This
 // means the package will not perform any logging by default until the caller
 // requests it.
 var log btclog.Logger
@@ -30,19 +30,3 @@ func DisableLog() {
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/signrpc/log.go b/lnrpc/signrpc/log.go
index b5ff742a0..2dc653343 100644
--- a/lnrpc/signrpc/log.go
+++ b/lnrpc/signrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This
+// log is a logger that is initialized with no output filters. This
 // means the package will not perform any logging by default until the caller
 // requests it.
 var log btclog.Logger
@@ -27,19 +27,3 @@ func DisableLog() {
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/verrpc/log.go b/lnrpc/verrpc/log.go
index fb57daa21..3553b5680 100644
--- a/lnrpc/verrpc/log.go
+++ b/lnrpc/verrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This
+// log is a logger that is initialized with no output filters. This
 // means the package will not perform any logging by default until the caller
 // requests it.
 var log btclog.Logger
diff --git a/lnrpc/walletrpc/log.go b/lnrpc/walletrpc/log.go
index 5c14879f6..1916c549f 100644
--- a/lnrpc/walletrpc/log.go
+++ b/lnrpc/walletrpc/log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This means the
+// log is a logger that is initialized with no output filters. This means the
 // package will not perform any logging by default until the caller requests
 // it.
 var log btclog.Logger
@@ -21,25 +21,9 @@ func DisableLog() {
 	UseLogger(btclog.Disabled)
 }
 
-// UseLogger uses a specified Logger to output package logging info.  This
+// UseLogger uses a specified Logger to output package logging info. This
 // should be used in preference to SetLogWriter if the caller is also using
 // btclog.
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}
diff --git a/lnrpc/watchtowerrpc/log.go b/lnrpc/watchtowerrpc/log.go
index 0ff4e6801..a71b7827f 100644
--- a/lnrpc/watchtowerrpc/log.go
+++ b/lnrpc/watchtowerrpc/log.go
@@ -29,19 +29,3 @@ func DisableLog() {
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }
-
-// logClosure is used to provide a closure over expensive logging operations so
-// don't have to be performed when the logging level doesn't warrant it.
-type logClosure func() string // nolint:unused
-
-// String invokes the underlying function and returns the result.
-func (c logClosure) String() string {
-	return c()
-}
-
-// newLogClosure returns a new closure over a function that returns a string
-// which itself provides a Stringer interface so that it can be used with the
-// logging system.
-func newLogClosure(c func() string) logClosure { // nolint:unused
-	return logClosure(c)
-}