pidgin/pidgin

Remove `purple_utf16*` functions.

2021-01-30, Elliott Sales de Andrade
265694d7b23d
Remove `purple_utf16*` functions.

Testing Done:
Compiled only.

Reviewed at https://reviews.imfreedom.org/r/468/
i18n = import('i18n')
i18n.gettext('pidgin',
args : '--from-code=utf-8',
install : get_option('nls'),
)