Remove check_sudoedit function pointer in struct sudo_policy.

Instead, sudo will set sudoedit=true in the settings array.
The plugin should check for this and modify argv_out as appropriate
in check_policy.

include/sudo_plugin.h

@@ -68,9 +68,6 @@ struct policy_plugin {
 	const char *list_user);
     int (*validate)(void);
     void (*invalidate)(int remove);
-    int (*check_sudoedit)(int argc, char * const argv[],
-	char *env_add[], char **command_info[],
-	char **argv_out[], char **user_env_out[]);
 };
 
 /* I/O plugin type and defines */