Remove old dct.c with transforms that were long ago replaced by newdct.c.
Remove old dct.c with transforms that were long ago replaced by newdct.c.

tribouille/daala,vr000m/daala,ascent12/daala,felipebetancur/daala,luctrudeau/daala,ascent12/daala,smarter/daala,jmvalin/daala,luctrudeau/daala,smarter/daala,felipebetancur/daala,ycho/daala,nvoron23/daala,smarter/daala,kustom666/daala,luctrudeau/daala,mbebenita/daala,kbara/daala,kodabb/daala,ascent12/daala,xiph/daala,mbebenita/daala,HeadhunterXamd/daala,tribouille/daala,KyleSiefring/daala,mbebenita/daala,kbara/daala,iankronquist/daala,ycho/daala,mbebenita/daala,kustom666/daala,kodabb/daala,xiph/daala,tribouille/daala,iankronquist/daala,fluffy/daala,fluffy/daala,KyleSiefring/daala,tdaede/daala_awcy_runs,tdaede/daala_awcy_runs,ekr/daala,ascent12/daala,tribouille/daala,tdaede/daala_awcy_runs,vr000m/daala,metajack/daala,felipebetancur/daala,metajack/daala,vr000m/daala,jmvalin/daala,kustom666/daala,tdaede/daala_awcy_runs,HeadhunterXamd/daala,kodabb/daala,jmvalin/daala,nvoron23/daala,xiphmont/daala,xiphmont/daala,vr000m/daala,luctrudeau/daala,fluffy/daala,ekr/daala,ycho/daala,iankronquist/daala,ycho/daala,HeadhunterXamd/daala,smarter/daala,KyleSiefring/daala,xiph/daala,xiph/daala,KyleSiefring/daala,mbebenita/daala,kodabb/daala,jmvalin/daala,iankronquist/daala,tdaede/daala,tdaede/daala,xiphmont/daala,xiphmont/daala,xiph/daala,tribouille/daala,nvoron23/daala,HeadhunterXamd/daala,kbara/daala,felipebetancur/daala,tdaede/daala,metajack/daala,kbara/daala,nvoron23/daala,kustom666/daala,xiphmont/daala,luctrudeau/daala,vr000m/daala,kodabb/daala,ycho/daala,HeadhunterXamd/daala,kustom666/daala,felipebetancur/daala,ascent12/daala,ekr/daala,nvoron23/daala,iankronquist/daala,jmvalin/daala,KyleSiefring/daala,tdaede/daala