I only removed three whole entries, two cultural levels that were not in use, and this one TXT_KEY_EXPR_IS_COASTAL.
I was a bit uncertain about the latter but I couldn't find it in use neither in python nor xml looking trough both the mod and the vanilla game files.
Other stuff:
Removed a lot of french translation that was written in english, and other redundant non-translations.
Changed many
<Language>[NEWLINE]<Text>Whatever</Text>[NEWLINE]]</Language>
to <Language>Whatever</Language>
I didn't do the above for the entire XML as I got tired of doing it.
Hope it doesn't prove too much of an inconvenience for you.
Edit: Oh, the dll is using the TXT_KEY_EXPR_IS_COASTAL; I better put it back.
EditEdit: Fix commited to SVN 9367.
Thanks for making me double check TB, this one could have gone unnoticed for a long time.