buffer: lint

This and b80d11d are my fault. An unrelated test was failing, which
prevents {js,cpp}lint from running automatically.

src/node_buffer.cc

@@ -604,7 +604,6 @@ void SetupBufferJS(const FunctionCallbackInfo<Value>& args) {
 
   internal->Set(FIXED_ONE_BYTE_STRING(node_isolate, "byteLength"),
                 FunctionTemplate::New(ByteLength)->GetFunction());
-
 }