Revert "[GPU] Reset mip levels for non-mipmapped type"

This reverts commit eeb96f91a5.

src/xenia/gpu/texture_util.cc

@@ -69,7 +69,9 @@ void GetSubresourcesFromFetchConstant(
   uint32_t mip_page = fetch.mip_address & 0x1FFFF;
 
   uint32_t mip_min_level, mip_max_level;
-  if (fetch.mip_filter == xenos::TextureFilter::kBaseMap || mip_page == 0) {
+  // Not taking mip_filter == kBaseMap into account for mip_max_level because
+  // the mip filter may be overridden by shader fetch instructions.
+  if (mip_page == 0) {
     mip_min_level = 0;
     mip_max_level = 0;
   } else {