database/sql: remove unnecessary else conditions

Fixes golint warning about "if block ends with a return statement,
so drop this else and outdent its block".

Change-Id: Iac4fd324e04e3e3fe3e3933f5e59095041d292c5
Reviewed-on: https://go-review.googlesource.com/107115Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>

src/database/sql/convert.go

@@ -379,10 +379,9 @@ func convertAssign(dest, src interface{}) error {
 		if src == nil {
 			dv.Set(reflect.Zero(dv.Type()))
 			return nil
-		} else {
+		}
 		dv.Set(reflect.New(dv.Type().Elem()))
 		return convertAssign(dv.Interface(), src)
-		}
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		s := asString(src)
 		i64, err := strconv.ParseInt(s, 10, dv.Type().Bits())
@@ -434,11 +433,10 @@ func strconvErr(err error) error {
 func cloneBytes(b []byte) []byte {
 	if b == nil {
 		return nil
-	} else {
+	}
 	c := make([]byte, len(b))
 	copy(c, b)
 	return c
-	}
 }
 
 func asString(src interface{}) string {