Don't do fish_setlocale that early

This just sets some special characters that we use in the reader, so
it only needs to be done before the reader is set up.

Which, as it stands, is in env_init().

src/fish.cpp

@@ -377,7 +377,6 @@ int main(int argc, char **argv) {
     setup_fork_guards();
     signal_unblock_all();
     setlocale(LC_ALL, "");
-    fish_setlocale();
 
     // struct stat tmp;
     // stat("----------FISH_HIT_MAIN----------", &tmp);