Remove unused variable
Remove unused variable

salzhrani/prosemirror,salzhrani/prosemirror,adrianheine/prosemirror,jacwright/prosemirror,tzuhsiulin/prosemirror,kiejo/prosemirror,kiejo/prosemirror,tzuhsiulin/prosemirror,mattberkowitz/prosemirror,adrianheine/prosemirror,adrianheine/prosemirror,salzhrani/prosemirror,tzuhsiulin/prosemirror,mattberkowitz/prosemirror,kiejo/prosemirror,jacwright/prosemirror