po: remove special characters from translations

po: remove special characters from translations

Makes Zanata unhappy, in the Java way.

  for i in po/*.po; do awk '
    /^"  0 = / { print "\"%s\""; n=1; next; }
    /^"  8 = / { n=0; next }
    { if (!n) print }' $i >x
    mv x $i
  done

Fixes: 3641ddb00a19e7b0e094e8d9881221fdb87ce9c0