Multiple renamings; Removed some orphaned functions

include/pokedex.h

@@ -42,7 +42,6 @@ bool16 HasAllMons(void);
 u8 CreateDexDisplayMonDataTask(u16 dexNum, u32 trainerId, u32 personality);
 s8 GetSetPokedexFlag(u16 nationalNum, u8 caseId);
 u16 GetNationalPokedexCount(u8);
-u16 sub_80C0844(u8);
 u16 GetKantoPokedexCount(u8);
 bool16 HasAllHoennMons(void);
 bool16 HasAllKantoMons(void);