We no longer need to include headers we don't use for sudo*.h files.

Previously we needed to include headers required by the various
sudo*h files.  Now those files are more self-sufficient and we
should only include headers needed by code in the various .c files.

plugins/sudoers/match_command.c

@@ -28,7 +28,6 @@
 
 #include <config.h>
 
-#include <sys/types.h>
 #include <sys/stat.h>
 #include <stdio.h>
 #include <stdlib.h>