Round 2-2 of this.

src/ScreenAttract.cpp

@@ -82,7 +82,6 @@ bool ScreenAttract::AttractInput( const InputEventPlus &input, ScreenWithMenuEle
 				break;
 			// fall through
 		case GAME_BUTTON_START:
-		case GAME_BUTTON_COIN:
 			switch( GAMESTATE->GetCoinMode() )
 			{
 				case CoinMode_Home:
@@ -90,10 +89,6 @@ bool ScreenAttract::AttractInput( const InputEventPlus &input, ScreenWithMenuEle
 					if( pScreen->IsTransitioning() )
 						return false;
 
-					// HandleGlobalInputs() already played the coin sound. Don't play it again.
-					if( input.MenuI != GAME_BUTTON_COIN )
-						SCREENMAN->PlayStartSound();
-
 					pScreen->Cancel( SM_GoToStartScreen );
 					return true;
 				default: FAIL_M("Invalid Coin Mode! Aborting...");