roccat: remove unused variable
roccat: remove unused variable

Signed-off-by: Benjamin Tissoires <7a0e50e3f6a0939db82b6a8a423c08a163896f41@redhat.com>

cvuchener/libratbag,libratbag/libratbag,cvuchener/libratbag,NoXPhasma/libratbag,libratbag/libratbag,cvuchener/libratbag,NoXPhasma/libratbag,libratbag/libratbag,whot/libratbag,whot/libratbag,whot/libratbag,NoXPhasma/libratbag