image/png: remove go-fuzz test

An identical go1.18 test exists at `src/image/png/fuzz_test.go`.

Change-Id: I3e4db46296fb6a56655f849da8c0689aa5a1c28c
Reviewed-on: https://go-review.googlesource.com/c/go/+/576795
Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>

diff --git a/src/image/png/fuzz.go b/src/image/png/fuzz.go
deleted file mode 100644 (file)
index 688b6c9..0000000
--- a/src/image/png/fuzz.go
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build gofuzz
-
-package png
-
-import (
-       "bytes"
-       "fmt"
-)
-
-func Fuzz(data []byte) int {
-       cfg, err := DecodeConfig(bytes.NewReader(data))
-       if err != nil {
-               return 0
-       }
-       if cfg.Width*cfg.Height > 1e6 {
-               return 0
-       }
-       img, err := Decode(bytes.NewReader(data))
-       if err != nil {
-               return 0
-       }
-       levels := []CompressionLevel{
-               DefaultCompression,
-               NoCompression,
-               BestSpeed,
-               BestCompression,
-       }
-       for _, l := range levels {
-               var w bytes.Buffer
-               e := &Encoder{CompressionLevel: l}
-               err = e.Encode(&w, img)
-               if err != nil {
-                       panic(err)
-               }
-               img1, err := Decode(&w)
-               if err != nil {
-                       panic(err)
-               }
-               got := img1.Bounds()
-               want := img.Bounds()
-               if !got.Eq(want) {
-                       fmt.Printf("bounds0: %#v\n", want)
-                       fmt.Printf("bounds1: %#v\n", got)
-                       panic("bounds have changed")
-               }
-       }
-       return 1
-}