mainmenu fix (#217)

Source/diablo.cpp

@@ -281,7 +281,6 @@ bool __cdecl diablo_get_not_running()
 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 {
 	HINSTANCE v4; // esi
-	//int v11; // ecx
 	char Filename[260]; // [esp+8h] [ebp-10Ch]
 	char value_name[8]; // [esp+10Ch] [ebp-8h]
 
@@ -331,7 +330,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
 		UiTitleDialog(7);
 		BlackPalette();
 #endif
-		mainmenu_action(0); /* v11 fix unused arg */
+		mainmenu_loop();
 		UiDestroy();
 		SaveGamma();
 		if ( ghMainWnd )

Source/mainmenu.cpp

@@ -106,12 +106,11 @@ LABEL_6:
 // 5256E8: using guessed type int dword_5256E8;
 // 679660: using guessed type char gbMaxPlayers;
 
-void __fastcall mainmenu_action(int option)
+void __cdecl mainmenu_loop()
 {
 	int v1; // eax
 	int a2; // [esp+0h] [ebp-4h]
 
-	a2 = option;
 	mainmenu_refresh_music();
 	do
 	{

Source/mainmenu.h

@@ -9,7 +9,7 @@ void __cdecl mainmenu_cpp_init();
 void __cdecl mainmenu_refresh_music();
 void __stdcall mainmenu_create_hero(char *, char *);
 int __stdcall mainmenu_select_hero_dialog(int u1, int u2, int u3, int u4, int mode, char *cname, int clen, char *cdesc, int cdlen, int *multi);
-void __fastcall mainmenu_action(int option);
+void __cdecl mainmenu_loop();
 int __cdecl mainmenu_single_player();
 int __fastcall mainmenu_init_menu(int a1);
 int __cdecl mainmenu_multi_player();