Remove reamaning dummy methodes only used in sound.cpp and dx.cpp

Source/init.cpp

@@ -46,7 +46,6 @@ void init_cleanup(BOOL show_cursor)
 	NetClose();
 	dx_cleanup();
 	engine_debug_trap(show_cursor);
-	StormDestroy();
 
 	if (show_cursor)
 		ShowCursor(TRUE);

SourceX/dx.cpp

@@ -156,7 +156,6 @@ void dx_cleanup()
 
 	if (ghMainWnd)
 		ShowWindow(ghMainWnd, 0);
-	SDrawDestroy();
 	sgMemCrit.Enter();
 	if (sgpBackBuf != NULL) {
 		v0 = sgpBackBuf;

SourceX/sound.cpp

@@ -263,9 +263,6 @@ void snd_init(HWND hWnd)
 	if (sglpDS)
 		sound_create_primary_buffer(NULL);
 
-	SVidInitialize(sglpDS);
-	SFileDdaInitialize(sglpDS);
-
 	gbSndInited = sglpDS != NULL;
 }
 
@@ -353,7 +350,6 @@ HRESULT sound_DirectSoundCreate(LPGUID lpGuid, LPDIRECTSOUND *ppDS, LPUNKNOWN pU
 void sound_cleanup()
 {
 	snd_update(true);
-	SVidDestroy();
 	SFileDdaDestroy();
 
 	if (sglpDS) {

SourceX/storm/storm.cpp

@@ -96,11 +96,6 @@ BOOL SFileDdaGetPos(HANDLE hFile, DWORD *current, DWORD *end)
 	return true;
 }
 
-BOOL SFileDdaInitialize(HANDLE directsound)
-{
-	return true;
-}
-
 BOOL SFileDdaSetVolume(HANDLE hFile, signed int bigvolume, signed int volume)
 {
 	Mix_VolumeMusic(MIX_MAX_VOLUME - MIX_MAX_VOLUME * bigvolume / VOLUME_MIN);
@@ -421,18 +416,6 @@ BOOL SRegSaveValue(const char *keyname, const char *valuename, BYTE flags, DWORD
 	return true;
 }
 
-BOOL SVidInitialize(HANDLE video)
-{
-	DUMMY();
-	return true;
-}
-
-BOOL SVidDestroy()
-{
-	DUMMY();
-	return true;
-}
-
 double SVidFrameEnd;
 double SVidFrameLength;
 BYTE SVidLoop;
@@ -742,17 +725,6 @@ void SDrawMessageBox(char *Text, char *Title, int Flags)
 	MessageBoxA(NULL, Text, Title, Flags);
 }
 
-void SDrawDestroy(void)
-{
-	DUMMY();
-}
-
-BOOLEAN StormDestroy(void)
-{
-	DUMMY();
-	return true;
-}
-
 BOOL SFileSetBasePath(char *)
 {
 	DUMMY();