Andreas Jaeger 3e6da30802 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 20:00:00 +01:00
..
2016-02-17 17:24:55 +03:00
2016-02-29 20:00:00 +01:00
2015-04-01 18:54:29 +03:00
2015-04-01 18:54:29 +03:00