buffer: remove unreachable code

pd4d10 · jasnell · commit df8af88e3661 · 2021-05-07T09:43:44.000-07:00
PR-URL: nodejs#38537 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/lib/buffer.js b/lib/buffer.js
@@ -242,10 +242,7 @@ function _copyActual(source, target, targetStart, sourceStart, sourceEnd) {
     sourceEnd = sourceStart + target.length - targetStart;
 
   let nb = sourceEnd - sourceStart;
-  const targetLen = target.length - targetStart;
   const sourceLen = source.length - sourceStart;
-  if (nb > targetLen)
-    nb = targetLen;
   if (nb > sourceLen)
     nb = sourceLen;
 
