snappy-go: Remove equal4
This unexported function is not used anymore after the last CL
was submitted.
R=nigeltao, dchest, dave
CC=golang-dev
https://codereview.appspot.com/7377044
Committer: Nigel Tao <nigeltao@golang.org>
diff --git a/snappy/encode.go b/snappy/encode.go
index 2b87383..b2371db 100644
--- a/snappy/encode.go
+++ b/snappy/encode.go
@@ -11,14 +11,6 @@
// We limit how far copy back-references can go, the same as the C++ code.
const maxOffset = 1 << 15
-// equal4 returns whether b[i:i+4] equals b[j:j+4].
-func equal4(b []byte, i, j int) bool {
- return b[i] == b[j] &&
- b[i+1] == b[j+1] &&
- b[i+2] == b[j+2] &&
- b[i+3] == b[j+3]
-}
-
// emitLiteral writes a literal chunk and returns the number of bytes written.
func emitLiteral(dst, lit []byte) int {
i, n := 0, uint(len(lit)-1)
