MINOR: quic: Trace fix in qc_release_frm()

This wrong trace came with this commit:
  "BUG/MINOR: quic: Possible crashes when dereferencing ->pkt quic_frame struct member"
In qc_release_frm() we mark frames as acked. Nothing to see with references
to frames.

Thank you to Willy for having caught this one.

Must be backported to 2.6 as these traces arrived with a bug fix to be backported
to 2.6.
1 file changed