Remove casts to integers for texture and EFB formats

The only remaining casts for these types that I know of are in TextureInfo (where format_name is set to the int version of the format, and since that affects filenames and probably would break resource packs, I'm not changing it) and in TextureDecoder_Common's TexDecoder_DrawOverlay, which will be handled separately.

Source/Core/VideoCommon/TextureDecoder_x64.cpp

@@ -1495,8 +1495,7 @@ void _TexDecoder_DecodeImpl(u32* dst, const u8* src, int width, int height, Text
     break;
 
   default:
-    PanicAlertFmt("Invalid Texture Format ({:#X})! (_TexDecoder_DecodeImpl)",
-                  static_cast<int>(texformat));
+    PanicAlertFmt("Invalid Texture Format {}! (_TexDecoder_DecodeImpl)", texformat);
     break;
   }
 }