Remove Action Replay master codes from game inis that contained them, since they're unnecessary.

Fixes issue 6367: https://code.google.com/p/dolphin-emu/issues/detail?id=6367

Also fixed an AR code missing an '$' symbol beside its description name in G4NJDA.ini

Data/User/GameConfig/G4NJDA.ini

@@ -5,10 +5,7 @@
 #The Emulation State. 1 is worst, 5 is best, 0 is not set.
 EmulationStateId = 4
 [OnFrame]
-Master Code
-0FC07078 A8000000
-C4175B8C 0000FF00
 [ActionReplay]
-Everything unlocked
+$Everything unlocked
 042232F0 00FFFFFF
 002232FC 00002FFF