bufio: bufio.go has a useless comment

[seifchen]

What version of Go are you using (go version)?

$ go version
go version go1.16.4 linux/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE="on"
GOARCH="amd64"
GOBIN="/root/go"
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/root/go/pkg/mod"
GONOPROXY="***"
GONOSUMDB="***"
GOOS="linux"
GOPATH="/root/go"
GOPRIVATE="***"
GOPROXY="****,direct"
GOROOT="/usr/local/go"
GOSUMDB="off"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.16.4"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/root/go/src/learn/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1243951107=/tmp/go-build -gno-record-gcc-switches"

What did you do?

When I read the go source， I found in bufio package have one comment in bufio/bufio.go line 29，
// Buffered input
But I did not found any use. Should delete it.

[gopherbot]

Change https://golang.org/cl/333470 mentions this issue: bufio: delete unuseful comment

[mknyszek]

Thanks for sending a PR. In general, you do not need to open an issue for a small change like this. You can just send the PR.