HID: roccat: Cleanup of koneplus module

Removed caching of profile data which lowers memory footprint,
speeds up init and fixes problems with device reset.
Removed unnecessary infos in header.
Code moved nearer to format of newer drivers.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>