fanotify: Remove obsoleted fanotify_event_has_path()

All uses of fanotify_event_has_path() have
been removed since commit 9c61f3b5 ("fanotify: break up
fanotify_alloc_event()"), now it is useless, so remove it.

Link: https://lore.kernel.org/r/20220926023018.1505270-1-cuigaosheng1@huawei.comSigned-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/notify/fanotify/fanotify.h

@@ -452,12 +452,6 @@ static inline bool fanotify_is_error_event(u32 mask)
 	return mask & FAN_FS_ERROR;
 }
 
-static inline bool fanotify_event_has_path(struct fanotify_event *event)
-{
-	return event->type == FANOTIFY_EVENT_TYPE_PATH ||
-		event->type == FANOTIFY_EVENT_TYPE_PATH_PERM;
-}
-
 static inline struct path *fanotify_event_path(struct fanotify_event *event)
 {
 	if (event->type == FANOTIFY_EVENT_TYPE_PATH)