revlog: skip opener option to pass chunk_cache_size value

We can directly set the option in the config object now.

mercurial/localrepo.py

@@ -1087,7 +1087,7 b' def resolverevlogstorevfsoptions(ui, req'
     # experimental config: format.chunkcachesize
     chunkcachesize = ui.configint(b'format', b'chunkcachesize')
     if chunkcachesize is not None:
-        options[b'chunkcachesize'] = chunkcachesize
+        data_config.chunk_cache_size = chunkcachesize
 
     deltabothparents = ui.configbool(
         b'storage', b'revlog.optimize-delta-parent-choice'

mercurial/revlog.py

@@ -628,8 +628,6 b' class revlog:'
         else:
             new_header = REVLOG_DEFAULT_VERSION
 
-        if b'chunkcachesize' in opts:
-            self.data_config.chunk_cache_size = opts[b'chunkcachesize']
         if b'maxchainlen' in opts:
             self.delta_config.max_chain_len = opts[b'maxchainlen']
         if b'deltabothparents' in opts: