First Metal cleanup & formatting pass

include/renderer_gl/surface_cache.hpp

@@ -19,8 +19,6 @@ template <typename SurfaceType, size_t capacity, bool evictOnOverflow = false>
 class SurfaceCache {
     // Vanilla std::optional can't hold actual references
     using OptionalRef = std::optional<std::reference_wrapper<SurfaceType>>;
-    //static_assert(std::is_same<SurfaceType, ColourBuffer>() || std::is_same<SurfaceType, DepthBuffer>()  ||
-    //    std::is_same<SurfaceType, Texture>(), "Invalid surface type");
 
     size_t size;
     size_t evictionIndex;