[Server] Fix GCC 8 build

apps/openmw-mp/Script/Types.hpp

@@ -103,13 +103,9 @@ struct CallbackIdentity
 struct ScriptFunctionPointer : public ScriptIdentity
 {
     void *addr;
-#if (!defined(__clang__) && defined(__GNUC__))
+
-    template<typename R, typename... Types>
-    constexpr ScriptFunctionPointer(Function<R, Types...> addr) : ScriptIdentity(addr), addr(reinterpret_cast<void*>(addr)) {}
-#else
     template<typename R, typename... Types>
-    constexpr ScriptFunctionPointer(Function<R, Types...> addr) : ScriptIdentity(addr), addr(addr) {}
+    constexpr ScriptFunctionPointer(Function<R, Types...> addr) : ScriptIdentity(addr), addr((void*)(addr)) {}
-#endif
 };
 
 struct ScriptFunctionData