This reverts commit 04b70c68.

The OpenGLRender is not abstract enough for vcl. Leave it in chart2.

Conflicts:
	chart2/source/view/inc/DummyXShape.hxx
	chart2/source/view/main/OpenGLRender.hxx
	vcl/Library_vclopengl.mk

Change-Id: I5392c8ee34462ff49059126ca2284d8ebe1eb379