remove country restriction from tokenizer

Restricting tokens due to the search context is better done in
the generic search part instead of repeating the same test in
every tokenizer implementation.

lib-php/Geocode.php

@@ -498,7 +498,6 @@ class Geocode
         if ($this->aCountryCodes) {
             $oCtx->setCountryList($this->aCountryCodes);
         }
-        $this->oTokenizer->setCountryRestriction($this->aCountryCodes);
 
         Debug::newSection('Query Preprocessing');