vfs: remove ".readlink = generic_readlink" assignments

If .readlink == NULL implies generic_readlink().

Generated by:

to_del="\.readlink.*=.*generic_readlink"
for i in `git grep -l $to_del`; do sed -i "/$to_del"/d $i; done

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

fs/cifs/cifsfs.c

@@ -914,7 +914,6 @@ const struct inode_operations cifs_file_inode_ops = {
 };
 
 const struct inode_operations cifs_symlink_inode_ops = {
-	.readlink = generic_readlink,
 	.get_link = cifs_get_link,
 	.permission = cifs_permission,
 	.listxattr = cifs_listxattr,