Don't read unused variable.
Don't read unused variable.

anarsoul/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,mgehre/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,klauspost/rawspeed,mgehre/rawspeed,klauspost/rawspeed