All: Remove line from README about a now-implemented feature
All: Remove line from README about a now-implemented feature

jeremyherbert/mgba,matthewbauer/mgba,libretro/mgba,fr500/mgba,iracigt/mgba,fr500/mgba,AdmiralCurtiss/mgba,sergiobenrocha2/mgba,libretro/mgba,Anty-Lemon/mgba,askotx/mgba,jeremyherbert/mgba,jeremyherbert/mgba,sergiobenrocha2/mgba,Anty-Lemon/mgba,matthewbauer/mgba,Touched/mgba,sergiobenrocha2/mgba,AdmiralCurtiss/mgba,libretro/mgba,nattthebear/mgba,cassos/mgba,Anty-Lemon/mgba,fr500/mgba,Touched/mgba,Iniquitatis/mgba,bentley/mgba,libretro/mgba,zerofalcon/mgba,iracigt/mgba,Touched/mgba,mgba-emu/mgba,sergiobenrocha2/mgba,zerofalcon/mgba,MerryMage/mgba,bentley/mgba,Iniquitatis/mgba,jeremyherbert/mgba,mgba-emu/mgba,libretro/mgba,cassos/mgba,fr500/mgba,mgba-emu/mgba,zerofalcon/mgba,askotx/mgba,askotx/mgba,Anty-Lemon/mgba,nattthebear/mgba,Iniquitatis/mgba,iracigt/mgba,iracigt/mgba,AdmiralCurtiss/mgba,MerryMage/mgba,cassos/mgba,Iniquitatis/mgba,sergiobenrocha2/mgba,mgba-emu/mgba,MerryMage/mgba,askotx/mgba