codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-37798 · Microsoft / collected KEV context

cve-program · CVE-2025-37798

• https://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58e
• https://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2
• https://git.kernel.org/stable/c/eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450
• https://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30
• https://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1
• https://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619d
• https://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483
• https://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31
• https://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaef

No related operational record is retained in the current change model.