replace 'util.re()' with 'text.re()'

remove unnecessary 'util' imports

gallery_dl/extractor/realbooru.py

@@ -70,7 +70,7 @@ class RealbooruExtractor(booru.BooruExtractor):
         page = post["_html"]
         tag_container = text.extr(page, 'id="tagLink"', '</div>')
         tags = collections.defaultdict(list)
-        pattern = util.re(r'<a class="(?:tag-type-)?([^"]+).*?;tags=([^"&]+)')
+        pattern = text.re(r'<a class="(?:tag-type-)?([^"]+).*?;tags=([^"&]+)')
         for tag_type, tag_name in pattern.findall(tag_container):
             tags[tag_type].append(text.unescape(text.unquote(tag_name)))
         for key, value in tags.items():