move hack to client

vendor/github.com/mailru/easyjson/jlexer/bytestostr_nounsafe.go

@@ -1,13 +0,0 @@
-// This file is included to the build if any of the buildtags below
-// are defined. Refer to README notes for more details.
-
-//+build easyjson_nounsafe appengine
-
-package jlexer
-
-// bytesToStr creates a string normally from []byte
-//
-// Note that this method is roughly 1.5x slower than using the 'unsafe' method.
-func bytesToStr(data []byte) string {
-	return string(data)
-}