[ruby/fiddle] Remove Vim commands

(https://github.com/ruby/fiddle/pull/140)

Some of these commands just don't work (for example `sws` is not a Vim
setting). I think we should just remove these.

c3dbf7ba9a

ext/fiddle/function.c

@@ -493,4 +493,3 @@ Init_fiddle_function(void)
      */
     rb_define_method(cFiddleFunction, "initialize", initialize, -1);
 }
-/* vim: set noet sws=4 sw=4: */