Move S_Update() out of game loop and into Net_GetPackets()

This improves, but doesn't fix, the issue with sound popping when the player angle changes.

git-svn-id: https://svn.eduke32.com/eduke32@7676 1a8010ca-5511-0410-912e-c29ae57300e0

source/duke3d/src/game.cpp

@@ -6779,8 +6779,6 @@ MAIN_LOOP_RESTART:
             if (g_gameUpdateAvgTime < 0.f)
                 g_gameUpdateAvgTime = g_gameUpdateTime;
             g_gameUpdateAvgTime = ((GAMEUPDATEAVGTIMENUMSAMPLES-1.f)*g_gameUpdateAvgTime+g_gameUpdateTime)/((float) GAMEUPDATEAVGTIMENUMSAMPLES);
-
-            S_Update();
         }
 
         G_DoCheats();

source/duke3d/src/network.cpp

@@ -86,7 +86,7 @@ void Net_GetPackets(void)
 {
     timerUpdate();
     MUSIC_Update();
-    S_Cleanup();
+    S_Update();
 
     G_HandleSpecialKeys();