make new_sync_{read,write}() static

All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/reiserfs/file.c

@@ -243,8 +243,6 @@ drop_write_lock:
 }
 
 const struct file_operations reiserfs_file_operations = {
-	.read = new_sync_read,
-	.write = new_sync_write,
 	.unlocked_ioctl = reiserfs_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = reiserfs_compat_ioctl,