diff --git a/src/vendor/golang_org/x/text/unicode/norm/readwriter.go b/src/vendor/golang_org/x/text/unicode/norm/readwriter.go
index 4fa0e04b21..d926ee903e 100644
--- a/src/vendor/golang_org/x/text/unicode/norm/readwriter.go
+++ b/src/vendor/golang_org/x/text/unicode/norm/readwriter.go
@@ -112,7 +112,6 @@ func (r *normReader) Read(p []byte) (int, error) {
 			}
 		}
 	}
-	panic("should not reach here")
 }
 
 // Reader returns a new reader that implements Read