[Global playerlist] Do not remove players from the same server on quit, let backend handle it (#1611)

Author: NEZNAMY

shared/src/main/java/me/neznamy/tab/shared/features/globalplayerlist/GlobalPlayerList.java

@@ -120,6 +120,7 @@ public void onJoin(@NotNull TabPlayer connectedPlayer) {
     public void onQuit(@NotNull TabPlayer disconnectedPlayer) {
         onlinePlayers.removePlayer(disconnectedPlayer);
         for (TabPlayer all : onlinePlayers.getPlayers()) {
+            if (disconnectedPlayer.server == all.server) continue; // Already removed by server itself
             all.getTabList().removeEntry(disconnectedPlayer.getTablistId());
         }
     }