Fix a title screen label that accidentally made its way into bank 1.

Somehow, a title screen (bank 0x43) function had its label put in bank 1.
This caused changes to either bank to break the compiled rom.

fixes 61a3d145
Unused title screen code, graphics, tilemaps, palettes.

At 43:4000 (UnusedTitleScreen) is a semi-functional title screen.
It's never used, and appears in the Japanese version at the same offset.

Notably, a portion of the logo is cut out and used as OAM.
The final title screen instead uses BG priority to avoid this.