remove unnecessary clearColor statement.
remove unnecessary clearColor statement.

printedheart/philogl,senchalabs/philogl,senchalabs/philogl,Drakesinger/philogl,philogb/philogl,philogb/philogl,philogb/philogl,printedheart/philogl,senchalabs/philogl,Drakesinger/philogl,Drakesinger/philogl,shelsonjava/philogl,shelsonjava/philogl,shelsonjava/philogl,shelsonjava/philogl,printedheart/philogl