Sean McGinnis bc42481fd6 Remove unused doc extensions
Some doc extensions were no longer being used. This removes them
from our doc configuration.

Change-Id: I130462a9831a84fdd9607c8ca370c91cf395fb1b
2018-03-28 14:51:02 -05:00
..
2012-05-03 10:48:26 -07:00
2018-02-11 11:24:02 +08:00
2017-06-06 08:54:54 +08:00
2018-03-28 14:51:02 -05:00