Remove unused source files (#212)

* Delete AI_BaseNPC_Schedule.cpp

* Delete soundsystem.cpp

cl_dll/soundsystem.cpp

@@ -1,163 +0,0 @@
-//======== (C) Copyright 1996-2002 Valve, L.L.C. All rights reserved. ========
-//
-// The copyright to the contents herein is the property of Valve, L.L.C.
-// The contents may be used and/or copied only with the written permission of
-// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
-// the agreement/contract under which the contents have been supplied.
-//
-// Purpose: 
-//
-// $Workfile:     $
-// $Date:         $
-//
-//-----------------------------------------------------------------------------
-// $Log: $
-//
-// $NoKeywords: $
-//=============================================================================
-
-#include <windows.h>
-#include <dsound.h>
-#include <mmsystem.h>
-#include "r_studioint.h"
-
-extern engine_studio_api_t IEngineStudio;
-
-#define RENDERTYPE_UNDEFINED	0
-#define RENDERTYPE_SOFTWARE		1
-#define RENDERTYPE_HARDWARE		2
-
-#define ENGINE_LAUNCHER_API_VERSION 1
-
-LPDIRECTSOUND		lpDS		= NULL;
-LPDIRECTSOUNDBUFFER	lpDSBuf		= NULL;
-LPHWAVEOUT		lpHW		= NULL;
-
-static HMODULE hEngine = 0;
-
-typedef struct engine_api_s
-{
-	int		version;
-	int		rendertype;
-	int		size;
-
-	// Functions
-	void	( *unused1 )					( void );
-	void	( *unused2 )					( void );
-	void	( *unused3 )					( void );
-	void	( *unused4 )					( void );
-	void	( *unused5 )					( void );
-	void	( *unused6 )					( void );
-	void	( *unused7 )					( void );
-	void	( *unused8 )					( void );
-	void	( *unused9 )					( void );
-	void	( *unused10 )					( void );
-	void	( *unused11 )					( void );
-	void	( *unused12 )					( void );
-	void	( *unused13 )					( void );
-	void	( *unused14 )					( void );
-	void	( *unused15 )					( void );
-	void	( *unused16 )					( void );
-	void	( *unused17 )					( void );
-	void	( *unused18 )					( void );
-	void	( *unused19 )					( void );
-	void	( *unused20 )					( void );
-	void	( *unused21 )					( void );
-	void	( *unused22 )					( void );
-	void	( *unused23 )					( void );
-	void	( *unused24 )					( void );
-	void	( *unused25 )					( void );
-	void	( *unused26 )					( void );
-	void	( *unused27 )					( void );
-	void	( *unused28 )					( void );
-	void	( *unused29 )					( void );
-	void	( *unused30 )					( void );
-	void	( *unused31 )					( void );
-	void	( *unused32 )					( void );
-	void	( *unused33 )					( void );
-	void	( *unused34 )					( void );
-
-	void	( *S_GetDSPointer )				( struct IDirectSound **lpDS, struct IDirectSoundBuffer **lpDSBuf );
-	void 	*( *S_GetWAVPointer )			( void );
-
-	void	( *unused35 )					( void );
-	void	( *unused36 )					( void );
-	void	( *unused37 )					( void );
-	void	( *unused38 )					( void );
-	void	( *unused39 )					( void );
-	void	( *unused40 )					( void );
-	void	( *unused41 )					( void );
-	void	( *unused42 )					( void );
-	void	( *unused43 )					( void );
-	void	( *unused44 )					( void );
-	void	( *unused45 )					( void );
-	void	( *unused46 )					( void );
-	void	( *unused47 )					( void );
-	void	( *unused48 )					( void );
-	void	( *unused49 )					( void );
-	void	( *unused50 )					( void );
-	void	( *unused51 )					( void );
-	void	( *unused52 )					( void );
-	void	( *unused53 )					( void );
-	void	( *unused54 )					( void );
-	void	( *unused55 )					( void );
-} engine_api_t;
-
-static engine_api_t engineapi;
-
-typedef int (*engine_api_func)( int version, int size, struct engine_api_s *api );
-
-//-----------------------------------------------------------------------------
-// Purpose: Get launcher/engine interface from engine module
-// Input  : hMod - 
-// Output : int
-//-----------------------------------------------------------------------------
-int Eng_LoadFunctions( HMODULE hMod )
-{
-	engine_api_func pfnEngineAPI;
-	
-	pfnEngineAPI = ( engine_api_func )GetProcAddress( hMod, "Sys_EngineAPI"  );
-	if( !pfnEngineAPI )
-		return 0;
-
-	if( !(*pfnEngineAPI)( ENGINE_LAUNCHER_API_VERSION, sizeof( engine_api_t ), &engineapi ) )
-		return 0;
-
-	// All is okay
-	return 1;
-}
-
-//-----------------------------------------------------------------------------
-// Purpose: Load proper engine .dll and get pointer to either DSound and primary buffer or HWAVEOUT ( NT 4.0, e.g. )
-//-----------------------------------------------------------------------------
-void LoadSoundAPIs( void )
-{
-	hEngine = ::LoadLibrary( IEngineStudio.IsHardware() ? "hw.dll" : "sw.dll" );
-	if( hEngine )
-	{
-		if( Eng_LoadFunctions( hEngine ) )
-		{
-			if( engineapi.S_GetDSPointer && engineapi.S_GetWAVPointer )
-			{
-				engineapi.S_GetDSPointer(&lpDS, &lpDSBuf);
-				lpHW = (HWAVEOUT FAR *)engineapi.S_GetWAVPointer();
-			}
-		}
-	}
-}
-
-//-----------------------------------------------------------------------------
-// Purpose: Close engine library, release sound pointers
-//-----------------------------------------------------------------------------
-void ShutdownSoundAPIs( void )
-{
-	if( hEngine )
-	{
-		FreeLibrary( hEngine );
-		hEngine = 0;
-	}
-
-	lpDS = 0;
-	lpDSBuf = 0;
-	lpHW = 0;
-}