get rid of more delete song stuff

src/ScreenNetSelectMusic.cpp

@@ -39,7 +39,6 @@ AutoScreenMessage(SM_RefreshWheelLocation);
 AutoScreenMessage(SM_SongChanged);
 AutoScreenMessage(SM_UsersUpdate);
 AutoScreenMessage(SM_BackFromPlayerOptions);
-AutoScreenMessage(SM_ConfirmDeleteSong);
 AutoScreenMessage(ETTP_SelectChart);
 AutoScreenMessage(ETTP_StartChart);
 AutoScreenMessage(ETTP_Disconnect);
@@ -206,41 +205,12 @@ ScreenNetSelectMusic::HandleScreenMessage(const ScreenMessage SM)
 		SelectSongUsingNSMAN(this, true);
 	} else if (SM == ETTP_SelectChart) {
 		SelectSongUsingNSMAN(this, false);
-	} else if (SM == SM_ConfirmDeleteSong) {
-		if (ScreenPrompt::s_LastAnswer == ANSWER_YES) {
-			OnConfirmSongDeletion();
-		} else {
-			// need to resume the song preview that was automatically paused
-			m_MusicWheel.ChangeMusic(0);
-		}
 	}
 
 	// Must be at end, as so it is last resort for SMOnline packets.
 	// If it doesn't know what to do, then it'll just remove them.
 	ScreenSelectMusic::HandleScreenMessage(SM);
 }
-
-void
-ScreenNetSelectMusic::OnConfirmSongDeletion()
-{
-	Song* deletedSong = m_pSongAwaitingDeletionConfirmation;
-	if (!deletedSong) {
-		LOG->Warn("Attempted to delete a null song "
-				  "(ScreenSelectMusic::OnConfirmSongDeletion)");
-		return;
-	}
-
-	RString deleteDir = deletedSong->GetSongDir();
-	// flush the deleted song from any caches
-	SONGMAN->UnlistSong(deletedSong);
-	// refresh the song list
-	m_MusicWheel.ReloadSongList(false, "");
-	LOG->Trace("Deleting song: '%s'\n", deleteDir.c_str());
-	// delete the song directory from disk
-	FILEMAN->DeleteRecursive(deleteDir);
-	m_pSongAwaitingDeletionConfirmation = NULL;
-}
-
 ScreenNetSelectMusic::~ScreenNetSelectMusic()
 {
 	if (PREFSMAN->m_verbose_log > 1)

src/SongManager.cpp

@@ -905,11 +905,6 @@ SongManager::FreeSongs()
 	m_pSongs.clear();
 	m_SongsByDir.clear();
 
-	// also free the songs that have been deleted from disk
-	for (unsigned i = 0; i < m_pDeletedSongs.size(); ++i)
-		SAFE_DELETE(m_pDeletedSongs[i]);
-	m_pDeletedSongs.clear();
-
 	m_mapSongGroupIndex.clear();
 	m_sSongGroupBannerPaths.clear();
 
@@ -921,30 +916,6 @@ SongManager::FreeSongs()
 	m_pShuffledSongs.clear();
 }
 
-void
-SongManager::UnlistSong(Song* song)
-{
-	// cannot immediately free song data, as it is needed temporarily
-	// for smooth audio transitions, etc. Instead, remove it from the
-	// m_pSongs list and store it in a special place where it can safely
-	// be deleted later.
-	m_pDeletedSongs.emplace_back(song);
-
-	// remove all occurences of the song in each of our song vectors
-	vector<Song*>* songVectors[3] = { &m_pSongs,
-									  &m_pPopularSongs,
-									  &m_pShuffledSongs };
-	for (int songVecIdx = 0; songVecIdx < 3; ++songVecIdx) {
-		vector<Song*>& v = *songVectors[songVecIdx];
-		for (size_t i = 0; i < v.size(); ++i) {
-			if (v[i] == song) {
-				v.erase(v.begin() + i);
-				--i;
-			}
-		}
-	}
-}
-
 bool
 SongManager::IsGroupNeverCached(const RString& group) const
 {

src/SongManager.h

@@ -37,7 +37,6 @@ class SongManager
 
 	void InitSongsFromDisk(LoadingWindow* ld);
 	void FreeSongs();
-	void UnlistSong(Song* song);
 	void Cleanup();
 
 	void Invalidate(const Song* pStaleSong);
@@ -190,10 +189,6 @@ class SongManager
 	unordered_map<string, Steps*> StepsByKey;
 
 	set<RString> m_GroupsToNeverCache;
-	/** @brief Hold pointers to all the songs that have been deleted from disk
-	 * but must at least be kept temporarily alive for smooth audio transitions.
-	 */
-	vector<Song*> m_pDeletedSongs;
 	/** @brief The most popular songs ranked by number of plays. */
 	vector<Song*> m_pPopularSongs;
 	// vector<Song*>		m_pRecentSongs;	// songs recently played on the