Revert "skins: SkinManager + hot-swap (F7), classic/nes a data/skins/"

This reverts commit ebfcad6f22.

source/core/input/global_inputs.cpp

@@ -5,8 +5,6 @@
 #include "core/input/input.h"
 #include "core/locale/lang.h"
 #include "core/rendering/screen.h"
-#include "core/resources/resource.h"
-#include "core/resources/skin_manager.hpp"
 #include "game/options.hpp"
 #include "utils/utils.h"
 
@@ -20,7 +18,6 @@ namespace GlobalInputs {
         constexpr int LANG_SHADER = 99;
         constexpr int LANG_PRESET = 100;
         constexpr int LANG_EXIT_CONFIRM = 101;
-        constexpr int LANG_SKIN = 102;
 
         constexpr Uint32 NOTIFY_MS = 1500;
         constexpr Uint32 EXIT_CONFIRM_MS = 2000;
@@ -66,11 +63,6 @@ namespace GlobalInputs {
             Screen::get()->notify(MSG, GREEN, BLACK, NOTIFY_MS);
         }
 
-        void notifySkin() {
-            const std::string MSG = Lang::get()->getText(LANG_SKIN) + " " + SkinManager::get()->currentDisplayName();
-            Screen::get()->notify(MSG, CYAN, BLACK, NOTIFY_MS);
-        }
-
         void onExit() {
             const Uint32 NOW = SDL_GetTicks();
             if (NOW < exit_window_until_ticks) {
@@ -125,14 +117,6 @@ namespace GlobalInputs {
                 return true;
             }
         }
-        if (Input::get()->checkInput(Input::Action::NEXT_SKIN, Input::Repeat::OFF)) {
-            const std::string NEXT_ID = SkinManager::get()->nextSkinId();
-            if (NEXT_ID != SkinManager::get()->current()) {
-                Resource::get()->reloadForSkin(NEXT_ID);
-            }
-            notifySkin();
-            return true;
-        }
         return false;
     }