Drop elements with its namespace from conf

The translation related elements are now provided by separate files
fontconfig.its and fontconfig.loc. we don't need to have it in conf
anymore.

Fixes #234
3 jobs for master in 5 minutes and 6 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #2807819
mingw-build

00:05:06

passed #2807817
shared-build

00:04:36

passed #2807818
static-build

00:03:29