Revert "Enable point sprites in StateManagerGL." Failures on AMD and Intel bots. This reverts commit e1bb74e7305cee5ea92ecd2b3b3d2ecad1cdee32. Change-Id: I8ae50bcf9ca365969f5231105fadc28f843aa527 Reviewed-on: https://chromium-review.googlesource.com/287854 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>