Remove snappy package (#350)

* Remove snappy and use as a dependency.

.travis.yml

@@ -20,6 +20,7 @@ install:
  - go get ./...
 
 script:
+ - go vet ./...
  - go test -cpu=2 ./...
  - go test -cpu=2 -tags=noasm ./...
  - CGO_ENABLED=1 go test -cpu=1,4 -short -race ./...
@@ -30,14 +31,14 @@ jobs:
     - go: 'master'
   fast_finish: true
   include:
-    - stage: misc one-off tests
+    - stage: other
       go: 1.16.x
       script:
         - diff <(gofmt -d .) <(printf "")
         - GOOS=linux GOARCH=386 go test -short ./... # test on 386/32 bits.
         - curl -sfL https://git.io/goreleaser | VERSION=v0.157.0 sh -s -- check # check goreleaser config for deprecations
         - curl -sL https://git.io/goreleaser | VERSION=v0.157.0 sh -s -- --snapshot --skip-publish --rm-dist
-    - stage: arm64 tests
+    - stage: other
       arch: arm64
       go:
         - 1.16.x

README.md

@@ -372,13 +372,6 @@ For more information see my blog post on [Fast Linear Time Compression](http://b
 This is implemented on Go 1.7 as "Huffman Only" mode, though not exposed for gzip.
 
 
-# snappy package
-
-The standard snappy package has now been improved. This repo contains a copy of the snappy repo.
-
-I would advise to use the standard package: https://github.com/golang/snappy
-
-
 # license
 
 This code is licensed under the same conditions as the original Go code. See LICENSE file.

go.mod

@@ -1,3 +1,5 @@
 module github.com/klauspost/compress
 
 go 1.13
+
+require github.com/golang/snappy v0.0.3 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
+github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=