Fix OpenGL too

src/video_core/renderer_opengl/gl_shader_cache.cpp

@@ -399,11 +399,6 @@ GraphicsPipeline* ShaderCache::BuiltPipeline(GraphicsPipeline* pipeline) const n
     if (!use_asynchronous_shaders) {
         return pipeline;
     }
-    // If something is using depth, we can assume that games are not rendering anything which
-    // will be used one time.
-    if (maxwell3d->regs.zeta_enable) {
-        return nullptr;
-    }
     // If games are using a small index count, we can assume these are full screen quads.
     // Usually these shaders are only used once for building textures so we can assume they
     // can't be built async