* lisp/emacs-lisp/bytecomp.el: Don't load compile at runtime.

It isn't needed and slows down compiling other files.

lisp/emacs-lisp/bytecomp.el

@@ -124,7 +124,7 @@
 (require 'backquote)
 (require 'macroexp)
 (require 'cconv)
-(require 'compile)
+(eval-when-compile (require 'compile))
 ;; Refrain from using cl-lib at run-time here, since it otherwise prevents
 ;; us from emitting warnings when compiling files which use cl-lib without
 ;; requiring it! (bug#30635)