Remove unused languages added along with MathCAT inclusion #19484
Summary of the issue:
When MathCAT has been integrated in NVDA (#18323), many translatable language names have been added. These language names are not used by MathCAT, nor by NVDA itself. Thus this addition only represents extra work for translators and unused code in the code base.
Description of user facing changes:
N/A
Description of developer facing changes:
No more unused languages to translate.
Description of development approach:
Removed the languages added in Integrate MathCAT into NVDA #18323.
Kept the most modern annotation style done in the same file.
