增加websocket支持

vendor/google.golang.org/protobuf/internal/errors/errors.go

@@ -87,18 +87,3 @@ func InvalidUTF8(name string) error {
 func RequiredNotSet(name string) error {
 	return New("required field %v not set", name)
 }
-
-type SizeMismatchError struct {
-	Calculated, Measured int
-}
-
-func (e *SizeMismatchError) Error() string {
-	return fmt.Sprintf("size mismatch (see https://github.com/golang/protobuf/issues/1609): calculated=%d, measured=%d", e.Calculated, e.Measured)
-}
-
-func MismatchedSizeCalculation(calculated, measured int) error {
-	return &SizeMismatchError{
-		Calculated: calculated,
-		Measured:   measured,
-	}
-}