sqlgen: Removing unrequired field.

util/sqlgen/default.go

@@ -140,6 +140,5 @@ var defaultTemplate = &Template{
 	defaultDropDatabaseLayout,
 	defaultDropTableLayout,
 	defaultSelectCountLayout,
-	defaultGroupByColumnLayout,
 	defaultGroupByLayout,
 }

util/sqlgen/template.go

@@ -28,6 +28,5 @@ type Template struct {
 	DropDatabaseLayout  string
 	DropTableLayout     string
 	SelectCountLayout   string
-	GroupByColumnLayout string
 	GroupByLayout       string
 }