[MacPorts] #67763: celt: mark obsolete, since merged into libopus

[MacPorts]

#67763: celt: mark obsolete, since merged into libopus
--------------------------+--------------------
 Reporter:  barracuda156  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.8.1
 Keywords:                |       Port:  celt
--------------------------+--------------------
 See: https://celt-codec.org/downloads
 https://opus-codec.org

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Ticket URL: <https://trac.macports.org/ticket/67763>
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