proc: remove useless check on symlink removal

proc symlinks always have valid ->data containing destination of symlink. No need to check it on removal -- proc_symlink() already done it.

---

 fs/proc/generic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -704,7 +704,7 @@ void free_proc_entry(struct proc_dir_entry *de)
 
 	release_inode_number(ino);
 
-	if (S_ISLNK(de->mode) && de->data)
+	if (S_ISLNK(de->mode))
 		kfree(de->data);
 	kfree(de);
 }