Map SDL gamepad buttons to keys explicitly

code/client/keycodes.h

@@ -261,8 +261,6 @@ typedef enum {
 	K_UNDO,
 
 	// Gamepad controls
-	// Ordered to match SDL2 game controller buttons and axes
-	// Do not change this order without also changing IN_GamepadMove() in SDL_input.c
 	K_PAD0_A,
 	K_PAD0_B,
 	K_PAD0_X,