itest+lntest: migrate lntemp to lntest

This commit performs the takeover that `lntemp` is now promoted to be
`lntest`, and the scaffolding is now removed as all the refactoring is
finished!

lntest/rpc/wallet_unlocker.go

@@ -0,0 +1,64 @@
+package rpc
+
+import (
+	"context"
+
+	"github.com/lightningnetwork/lnd/lnrpc"
+)
+
+// =====================
+// WalletUnlockerClient related RPCs.
+// =====================
+
+// UnlockWallet makes a RPC request to WalletUnlocker and asserts there's no
+// error.
+func (h *HarnessRPC) UnlockWallet(
+	req *lnrpc.UnlockWalletRequest) *lnrpc.UnlockWalletResponse {
+
+	ctxt, cancel := context.WithTimeout(h.runCtx, DefaultTimeout)
+	defer cancel()
+
+	resp, err := h.WalletUnlocker.UnlockWallet(ctxt, req)
+	h.NoError(err, "UnlockWallet")
+
+	return resp
+}
+
+// InitWallet makes a RPC request to WalletUnlocker and asserts there's no
+// error.
+func (h *HarnessRPC) InitWallet(
+	req *lnrpc.InitWalletRequest) *lnrpc.InitWalletResponse {
+
+	ctxt, cancel := context.WithTimeout(h.runCtx, DefaultTimeout)
+	defer cancel()
+
+	resp, err := h.WalletUnlocker.InitWallet(ctxt, req)
+	h.NoError(err, "InitWallet")
+
+	return resp
+}
+
+// GenSeed makes a RPC request to WalletUnlocker and asserts there's no error.
+func (h *HarnessRPC) GenSeed(req *lnrpc.GenSeedRequest) *lnrpc.GenSeedResponse {
+	ctxt, cancel := context.WithTimeout(h.runCtx, DefaultTimeout)
+	defer cancel()
+
+	resp, err := h.WalletUnlocker.GenSeed(ctxt, req)
+	h.NoError(err, "GenSeed")
+
+	return resp
+}
+
+// ChangePassword makes a RPC request to WalletUnlocker and asserts there's no
+// error.
+func (h *HarnessRPC) ChangePassword(
+	req *lnrpc.ChangePasswordRequest) *lnrpc.ChangePasswordResponse {
+
+	ctxt, cancel := context.WithTimeout(h.runCtx, DefaultTimeout)
+	defer cancel()
+
+	resp, err := h.WalletUnlocker.ChangePassword(ctxt, req)
+	h.NoError(err, "ChangePassword")
+
+	return resp
+}