remove extra_phrase marker from rules

due to `extra_phrase` in rules, this shows that rules containing `extra-words`

Signed-off-by: Alok Kumar <[email protected]>

Author: alok1304

src/licensedcode/models.py

@@ -2447,7 +2447,9 @@ def dump(self, rules_data_dir, **kwargs):
         # other rule metadata, like debugging collection of required phrases
         if kwargs:
             metadata.update(kwargs)
-        content = self.text
+
+        # remove extra_phrase marker
+        content = remove_extra_phrase(self.text)
         output = dumps_frontmatter(content=content, metadata=metadata)
         with open(rule_file, 'w') as of:
             of.write(output)