[tor-bugs] #9107 [Tor]: Drop unused `circuit_dump_by_chan` function

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#9107: Drop unused `circuit_dump_by_chan` function
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 Reporter:  marek        |          Owner:     
     Type:  enhancement  |         Status:  new
 Priority:  trivial      |      Milestone:     
Component:  Tor          |        Version:     
 Keywords:               |         Parent:     
   Points:               |   Actualpoints:     
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 Well, it's unused. Noticed when working on #4519.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9107>
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