mtd: docg3: remove invalid __exit annotations
mtd: docg3: remove invalid __exit annotations

The .remove callback may be used when detaching a device via sysfs, so
we can't expect to free up this memory.

Signed-off-by: Brian Norris <ac73eed4b8a8c9127255a2696c52b2e7503720b8@gmail.com>
Acked-by: Robert Jarzmik <94b2a0a74cb42a2dd0cf1b763601af7f13907aa9@free.fr>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs