remove old graphics bin from ow editor

src/app/editor/overworld_editor.cc

@@ -71,8 +71,6 @@ absl::Status OverworldEditor::Update() {
     gfx_group_editor_.InitBlockset(&tile16_blockset_bmp_);
     RETURN_IF_ERROR(LoadEntranceTileTypes(*rom()));
     all_gfx_loaded_ = true;
-  } else if (!rom()->is_loaded() && all_gfx_loaded_) {
-    Shutdown();
   }
 
   RETURN_IF_ERROR(UpdateFullscreenCanvas());
@@ -1593,8 +1591,6 @@ void OverworldEditor::DrawOverworldSprites() {
 // ----------------------------------------------------------------------------
 
 absl::Status OverworldEditor::LoadGraphics() {
-  graphics_bin_ = rom()->graphics_bin();
-
   // Load the Link to the Past overworld.
   RETURN_IF_ERROR(overworld_.Load(*rom()))
   palette_ = overworld_.AreaPalette();

src/app/editor/overworld_editor.h

@@ -260,7 +260,6 @@ class OverworldEditor : public Editor,
   gfx::Bitmap all_gfx_bmp;
 
   gfx::BitmapTable maps_bmp_;
-  gfx::BitmapTable graphics_bin_;
   gfx::BitmapTable current_graphics_set_;
   gfx::BitmapTable sprite_previews_;
 

src/app/gfx/bitmap.h

@@ -281,8 +281,6 @@ class BitmapManager {
     if (it != bitmap_cache_.end()) {
       return it->second;
     }
-    std::cout << absl::StrCat("Bitmap with id ", id, " not found.")
-              << std::endl;
     return bitmap_cache_.begin()->second;
   }
   std::shared_ptr<gfx::Bitmap> const &shared_bitmap(int id) {