The fog doesn't depend on pixel shaders any longer(but still vice
versa), so we don't need this state any more.

This is the "replacement" for the fog coord optimization removed in
the previous patch.

Current implementation uses only peek buffer if there is any data,
which causes reads one byte per call in common
InternetQueryDataAvailable/InternetReadFile scenario.

Fix also 192 printf format warnings produced by this change.

This allows using the scrollbar when there are lots of usages set for
the certificate.

This makes the two static control borders between the three regions on
the general page appear to be the same height.