Dirty flag of lights not cleared at all

[apjagdale]

LIGHT_REMOVED flag when set is never cleared. Causes render data to be dirty every time. Issue found by gvr-cubemap demo which clears the scene which sets LIGHT_REMOVED flag and never cleared.

GearVRf DCO signed off by: Abhijit Jagdale a.jagdale@samsung.com

[apjagdale]

@NolaDonato Tested with framework test. They pass. There are few failures but those are irrespective of my change.

[liaxim]

Should this section clear the flag too?

    if (mDirty & REBUILD_SHADERS)
    {
        return scanLights();
    }

[apjagdale]

@liaxim No. That flag is cleared from shadersRebuilt() in render_target.cpp