revert comment lines

Author: mertcanaltin

lib/buffer.js

@@ -633,11 +633,7 @@ Buffer.concat = function concat(list, length) {
       pos += buf.length;
     }
 
-    // Note: `length` is always equal to `buffer.length` at this point
     if (pos < length) {
-      // Zero-fill the remaining bytes if the specified `length` was more than
-      // the actual total length, i.e. if we have some remaining allocated bytes
-      // there were not initialized.
       TypedArrayPrototypeFill(buffer, 0, pos, length);
     }
     return buffer;