Debugger: Remove unused data structures
Debugger: Remove unused data structures

sergiobenrocha2/mgba,Anty-Lemon/mgba,libretro/mgba,Iniquitatis/mgba,libretro/mgba,iracigt/mgba,libretro/mgba,mgba-emu/mgba,sergiobenrocha2/mgba,jeremyherbert/mgba,Anty-Lemon/mgba,iracigt/mgba,mgba-emu/mgba,libretro/mgba,fr500/mgba,libretro/mgba,Iniquitatis/mgba,Anty-Lemon/mgba,fr500/mgba,sergiobenrocha2/mgba,jeremyherbert/mgba,Iniquitatis/mgba,fr500/mgba,mgba-emu/mgba,Anty-Lemon/mgba,iracigt/mgba,mgba-emu/mgba,jeremyherbert/mgba,Iniquitatis/mgba,fr500/mgba,iracigt/mgba,sergiobenrocha2/mgba,jeremyherbert/mgba,sergiobenrocha2/mgba