Qt: Fix draw context memory leak when deleting the GameController
Qt: Fix draw context memory leak when deleting the GameController

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