Revert "Force gray-antialiasing for text."

Was already picked in 2.8 and the file it is changing is renamed in 2.8.

This reverts commit 83b0e3ce7650fca1a6388297f54627677eebe5d5

Change-Id: I2288241dc33fb713efaf8f182568bb1cd348f633
Reviewed-by: Marco Bubke <marco.bubke@digia.com>