refactor: removed obsolete translations

phpmyfaq/translations/language_ar.php

phpmyfaq/translations/language_cs.php

phpmyfaq/translations/language_de.php

phpmyfaq/translations/language_el.php

phpmyfaq/translations/language_en.php

phpmyfaq/translations/language_es.php

phpmyfaq/translations/language_fi.php

phpmyfaq/translations/language_fr-ca.php

phpmyfaq/translations/language_fr.php

phpmyfaq/translations/language_he.php

phpmyfaq/translations/language_hu.php

phpmyfaq/translations/language_id.php

phpmyfaq/translations/language_it.php

phpmyfaq/translations/language_ja.php

phpmyfaq/translations/language_lt.php

phpmyfaq/translations/language_mn.php

phpmyfaq/translations/language_ms.php

phpmyfaq/translations/language_nb.php

phpmyfaq/translations/language_nl.php

phpmyfaq/translations/language_pl.php