fix VC7 warnings

stepmania/src/EditMenu.cpp

@@ -164,7 +164,7 @@ void EditMenu::RefreshAll()
 				}
 			}
 
-			for( int i=0; i<m_vpSteps.size(); i++ )
+			for( unsigned i=0; i<m_vpSteps.size(); i++ )
 			{
 				const Steps *pSteps = m_vpSteps[i];
 				if( pSteps == GAMESTATE->m_pCurSteps[PLAYER_1] )

stepmania/src/Song.cpp

@@ -1425,7 +1425,6 @@ void Song::MakeUniqueEditDescription( StepsType st, CString &sPreferredDescripti
 	if( IsEditDescriptionUnique( m_vpSteps, st, sPreferredDescriptionInOut ) )
 		return;
 
-	int i=0;
 	CString sTemp;
 
 	for( int i=0; i<1000; i++ )