game_menu: remove stubbed option to enable/disable title cache.

the option was never actually implemented and there's no benifit to disabling it anyway.

sphaira/include/ui/menus/game_menu.hpp

@@ -102,7 +102,6 @@ private:
     option::OptionLong m_order{INI_SECTION, "order", OrderType::OrderType_Descending};
     option::OptionLong m_layout{INI_SECTION, "layout", LayoutType::LayoutType_Grid};
     option::OptionBool m_hide_forwarders{INI_SECTION, "hide_forwarders", false};
-    option::OptionBool m_title_cache{INI_SECTION, "title_cache", true};
 };
 
 struct NcmMetaData {

sphaira/source/ui/menus/game_menu.cpp

@@ -397,10 +397,6 @@ Menu::Menu(u32 flags) : grid::Menu{"Games"_i18n, flags} {
                     );
                 });
 
-                options->Add<SidebarEntryBool>("Title cache"_i18n, m_title_cache.Get(), [this](bool& v_out){
-                    m_title_cache.Set(v_out);
-                });
-
                 options->Add<SidebarEntryCallback>("Delete title cache"_i18n, [this](){
                     App::Push<OptionBox>(
                         "Are you sure you want to delete the title cache?"_i18n,