runtime: Remove fallback :CompilerSet definition from compiler plugins Commit: https://github.com/vim/vim/commit/408281e16a36c15eed10fbf0406fa8ab159fc4bf Author: Doug Kearns <dougkearns@gmail.com> Date: Thu Apr 4 22:00:58 2024 +0200 runtime: Remove fallback :CompilerSet definition from compiler plugins The :CompilerSet command was added in version Vim 6.4 which was released twenty years ago. Other runtime files do not support versions of that vintage so it is reasonable to remove this fallback command definition now. closes: #14399 Signed-off-by: Doug Kearns <dougkearns@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>