Revert "Core/Misc: Replace time(NULL) with GameTime::GetGameTime()"

This reverts commit 5fe3a1f7f9.

src/server/scripts/Commands/cs_gobject.cpp

@@ -26,7 +26,6 @@ EndScriptData */
 #include "Chat.h"
 #include "DatabaseEnv.h"
 #include "DBCStores.h"
-#include "GameTime.h"
 #include "GameEventMgr.h"
 #include "Language.h"
 #include "Log.h"
@@ -345,7 +344,7 @@ public:
 
         if (target)
         {
-            int32 curRespawnDelay = int32(target->GetRespawnTimeEx() - GameTime::GetGameTime());
+            int32 curRespawnDelay = int32(target->GetRespawnTimeEx() - time(nullptr));
             if (curRespawnDelay < 0)
                 curRespawnDelay = 0;