[en] No need to use .strip() chaining

I forgot Python strip() takes a string of characters,
which are all stripped from both ends.

src/wiktextract/extractor/en/page.py

@@ -1560,7 +1560,7 @@ def process_gloss_header(
             # tags, you can add them to WORD_LEVEL_HEAD_TEMPLATES
             for templ_data in term_label_templates:
                 print(templ_data)
-                expan = templ_data.get("expansion", "").strip("(").strip(")")
+                expan = templ_data.get("expansion", "").strip("().,; ")
                 if not expan:
                     continue
                 tlb_tagsets, tlb_topics = decode_tags(expan)