This reverts commit
7d5aea9edf358bcfc43dd1517bbebe658dce10c8.
The test isn't flaky: now that the regression is fixed we can
remove it from the flakes list.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12849>
spec@!opengl 1.1@depthstencil-default_fb-drawpixels-24_8 samples=4
spec@!opengl 1.1@depthstencil-default_fb-drawpixels-32f_24_8_rev samples=2
spec@!opengl 1.1@depthstencil-default_fb-drawpixels-float-and-ushort samples=4
-spec@!opengl 1.1@dlist-fdo3129-02
spec@arb_occlusion_query@occlusion_query_order
spec@egl_chromium_sync_control@conformance