[python] remove documentation from Math because the XML merger does not like it (see #3381)
[python] remove documentation from Math because the XML merger does not like it (see #3381)

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe