nixvim's docs build patches nixos-render-docs with nixpkgs PR#538502,
already merged in our nixpkgs, so the patch fails and breaks the build.
We follow a single nixpkgs, so drop the manpage instead.

nixpkgs default python3 moved to 3.14, but tulir_telethon declares no
3.14 support, breaking evaluation.

The list_add corruption / lib/list_debug.c:32 freezes on WiFi roam were
an add-side race: generic mt76_sta_add() re-ran mt76_wcid_init() on a
wcid that mt7925_mac_sta_add had already published, letting the rx/txs
softirq link it into sta_poll_list right before the second
INIT_LIST_HEAD self-looped the node. Our local teardown-side patch
could not close that window (crashed again 2026-07-07, 4x in 11 min).

Upstream fix 20b126920a25 ("wifi: mt76: add wcid publish check in
mt76_sta_add") is in 7.1.3, which linuxPackages_latest now provides
after the nixpkgs bump. Keep kernel >= 7.1.3.