lnrpc: remove ConfirmationUpdate message from close status updates

lnrpc/rpc.proto

@@ -1191,7 +1191,6 @@ message CloseChannelRequest {
 message CloseStatusUpdate {
     oneof update {
         PendingUpdate close_pending = 1 [json_name = "close_pending"];
-        ConfirmationUpdate confirmation = 2 [json_name = "confirmation"];
         ChannelCloseUpdate chan_close = 3 [json_name = "chan_close"];
     }
 }
@@ -1238,7 +1237,6 @@ message OpenChannelRequest {
 message OpenStatusUpdate {
     oneof update {
         PendingUpdate chan_pending = 1 [json_name = "chan_pending"];
-        ConfirmationUpdate confirmation = 2 [json_name = "confirmation"];
         ChannelOpenUpdate chan_open = 3 [json_name = "chan_open"];
     }
 }

lnrpc/rpc.swagger.json

@@ -1599,9 +1599,6 @@
         "close_pending": {
           "$ref": "#/definitions/lnrpcPendingUpdate"
         },
-        "confirmation": {
-          "$ref": "#/definitions/lnrpcConfirmationUpdate"
-        },
         "chan_close": {
           "$ref": "#/definitions/lnrpcChannelCloseUpdate"
         }
@@ -1639,23 +1636,6 @@
         }
       }
     },
-    "lnrpcConfirmationUpdate": {
-      "type": "object",
-      "properties": {
-        "block_sha": {
-          "type": "string",
-          "format": "byte"
-        },
-        "block_height": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "num_confs_left": {
-          "type": "integer",
-          "format": "int64"
-        }
-      }
-    },
     "lnrpcConnectPeerRequest": {
       "type": "object",
       "properties": {
@@ -2420,9 +2400,6 @@
         "chan_pending": {
           "$ref": "#/definitions/lnrpcPendingUpdate"
         },
-        "confirmation": {
-          "$ref": "#/definitions/lnrpcConfirmationUpdate"
-        },
         "chan_open": {
           "$ref": "#/definitions/lnrpcChannelOpenUpdate"
         }