tk_Arab and ku_Cyrl are actually Latin

[simoncozens]

id: "tk_Arab"
script: "Arab"
...
exemplar_chars {
  base: "a b ç d e ä f g h i j ž k l m n ň o ö p r s ş t u ü w y ý z"
  auxiliary: "c q v x"
  numerals: "  - ‑ , % ‰ + 0 1 2 3 4 5 6 7 8 9"
  punctuation: "- ‑ – — , ; : ! ? . … \" “ ” ( ) [ ] { } § @ * # { } { } { } { } { } { } { } { } { } { } { } { } { } { } { }"
  index: "A B Ç D E Ä F G H I J Ž K L M N Ň O Ö P R S Ş T U Ü W Y Ý Z"
}

id: "ku_Cyrl"
language: "ku"
script: "Cyrl"
...
exemplar_chars {
  base: "a b c ç d e ê f g h i î j k l m n o p q r s ş t u û v w x y z"
  auxiliary: "á à ă â å ä ã ā æ è ĕ ë ē é ì ĭ ï ī í ñ ó ò ŏ ô ø ō œ ß ù ŭ ū ú ÿ"
  marks: "◌̆ ◌̈"
  punctuation: "- ‐ ‑ – — , ; : ! ? . … \' ‘ ’ \" “ ” ( ) [ ] § @ * / & # † ‡ ′ ″"
  index: "A B C Ç D E Ê F G H I Î J K L M N O P Q R S Ş T U Û V W X Y Z"
}

I don't know how to fix this, because I'm not sure how they were generated. Just delete them?

[simoncozens]

I now do understand where these came from, but they're clearly wrong and interfering with script detection - when we grab a list of Arabic words, we get Latin ones as well because the Latin characters are included in a language which is nominally Arabic. We should at least remove the exemplar characters