configure: Remove unneeded libjpeg test (yes, should've used autoreconf, don't care)
configure: Remove unneeded libjpeg test (yes, should've used autoreconf, don't care)

Caellian/feh,yusiwen/feh,yusiwen/feh,BlackLight/feh,yusiwen/feh,Caellian/feh,BlackLight/feh,BlackLight/feh,Caellian/feh,Caellian/feh