Inf. PokeRadar not disabled in ORAS

[AnalogMan151]

In source/gameplg.c line 254 the code states to disable UpdateDexNav if the game is not XY instead of disabling PokeRadarChange which causes Inf PokeRadar to appear on the cheat menu in ORAS.

[Hartie95]

thx, I will fix it before the next release :)