Andreas Jaeger 14a7f399f8 Remove unused pngmath Sphinx extension
There's no RST file that uses ".. math" and thus
the pngmath Sphinx extension is not used and can
get removed.

Change-Id: I3ea4b529025c8ac3c4092f3720124647861e6668
2016-02-29 20:00:36 +01:00
..
2014-09-02 22:11:19 -03:00
2016-02-29 20:00:36 +01:00
2015-09-19 16:37:56 +05:30
2015-09-19 16:37:56 +05:30