bufferutils: remove equal, use Buffer.compare

src/bufferutils.js

@@ -168,16 +168,6 @@ function varIntBuffer (i) {
   return buffer
 }
 
-function equal (a, b) {
-  if (a.length !== b.length) return false
-
-  for (var i = 0; i < a.length; ++i) {
-    if (a[i] !== b[i]) return false
-  }
-
-  return true
-}
-
 function reverse (buffer) {
   var buffer2 = new Buffer(buffer)
   Array.prototype.reverse.call(buffer2)
@@ -185,7 +175,6 @@ function reverse (buffer) {
 }
 
 module.exports = {
-  equal: equal,
   pushDataSize: pushDataSize,
   readPushDataInt: readPushDataInt,
   readUInt64LE: readUInt64LE,