remove armourMath and wgContLang (bug 60799)

* armourMath is no longer needed

Bug: 60799

Change-Id: I1134d34d403b527821a1f7ccd370e78cf6197d71
(cherry picked from commit 2c555baf4f758dc0cbe08893a6bcb5ba79916f98)
Merge "remove armourMath and wgContLang (bug 60799)"