remove old debug (note: FAIL_M(x) is better than ASSERT_M(0, x))

stepmania/src/BGAnimationLayer.cpp

@@ -372,12 +372,6 @@ void BGAnimationLayer::LoadFromNode( const CString& sAniDir_, const XNode& layer
 	CHECKPOINT_M( ssprintf( "BGAnimationLayer::LoadFromIni \"%s\" %s",
 		sAniDir.c_str(), m_bGeneric? "(generic) ":"" ) );
 
-	{
-		CString sPlayer;
-		if( layer.GetAttrValue("Player", sPlayer) )
-			ASSERT_M( 0, "The BGAnimation parameter 'Player' is deprecated.  Please use 'Condition=IsPlayerEnabled(p)'." );
-	}
-
 	{
 		CString expr;
 		if( layer.GetAttrValue("Cond",expr) || layer.GetAttrValue("Condition",expr) )