fix(src): Removing unnecessary line

Author: blu133721

plugin_files/scripting/includes/swiftly/server.h

@@ -9,8 +9,6 @@
 
 #include "server/precacher.h"
 
-extern CCSGameRules *g_pGameRules;
-
 class Server
 {
 public:
@@ -103,4 +101,4 @@ class Server
 
 extern Server *server;
 
-#endif
+#endif