Updated mediawiki/extensions
Project: mediawiki/extensions/Math  52d206c4b4002340e21dd8fabdbde04e27a5372d

Remove call to deprecated ParserOptions::getMath

Since math has been moved from core to an extension
it should take care of the caching by its own.
Therefore, a call to the parserOptions::getMath is removed
and own caching logic is introduced, once getMath is removed
from core.

Bug: 14202
Change-Id: Ifa847b61264f8d640c9886fd374eb3d6cf482c0c