video_core: Remove unnecessary enum class casting in logging messages

fmt now automatically prints the numeric value of an enum class member by default, so we don't need to use casts any more.

Reduces the line noise in our code a bit.

Co-Authored-By: LC <712067+lioncash@users.noreply.github.com>

src/video_core/swrasterizer/lighting.cpp

@@ -143,7 +143,7 @@ std::tuple<Common::Vec4<u8>, Common::Vec4<u8>> ComputeFragmentsColors(
                 }
                 break;
             default:
-                LOG_CRITICAL(HW_GPU, "Unknown lighting LUT input {}", static_cast<u32>(input));
+                LOG_CRITICAL(HW_GPU, "Unknown lighting LUT input {}", input);
                 UNIMPLEMENTED();
                 result = 0.0f;
             }