VideoCore: #ifdef out some debugging routines

Some disabled debugging functionality was being called from rendering
routines in VideoCore. Although disabled, many of them still allocated
memory or did some extra work that was enough to show up in a profiler.
Gives a slight (~2ms) speedup.

src/video_core/rasterizer.cpp

@@ -462,7 +462,9 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
 
                     // TODO: Apply the min and mag filters to the texture
                     texture_color[i] = DebugUtils::LookupTexture(texture_data, s, t, info);
+#if PICA_DUMP_TEXTURES
                     DebugUtils::DumpTexture(texture.config, texture_data);
+#endif
                 }
             }