Updated mediawiki/extensions
Project: mediawiki/extensions/Math  1a627916c1a954e75955a2bec03253b16be6b207

remove unused code

This code is never used and will not be used in the future.
Adressing the equation for search will be handled by the
MathSearch extension. There will be a hook function to label
the equations.

Change-Id: Ia2149460134b361fb44f8ad85660793b1951d988