Remove more unused things from CryCommon and CrySystem. (#709)

Lots of unrelated removals, I basically tried to remove everything exposed via gEnv that isn't used anymore, and following the threads found a few other things to remove also.

Code/CryEngine/CryCommon/CryAssert_Android.h

@@ -31,7 +31,7 @@ void CryAssertTrace(const char* szFormat, ...)
         return;
     }
 
-    if (!gEnv->bIgnoreAllAsserts || gEnv->bTesting)
+    if (!gEnv->bIgnoreAllAsserts)
     {
         if (szFormat == NULL)
         {