Drop Wi-Fi power save toggling in favor of keeping it off

The on-battery toggle bought a fraction of a watt while the radio
idled -- twenty-some minutes across a full discharge in the best case
-- and paid for it with 20-300ms latency spikes on idle links and
outright link drops on Intel BE200/BE211 firmware. NetworkManager can
keep power save off natively with one conf.d line, which replaces the
udev rule, the setter script, and any per-card deny-listing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-wifi-powersave

@@ -1,10 +0,0 @@
-#!/bin/bash
-
-# omarchy:summary=Set Wi-Fi power save mode on wireless interfaces
-# omarchy:args=<on|off>
-
-shopt -s nullglob
-for iface in /sys/class/net/*/wireless; do
-  iface="$(basename "$(dirname "$iface")")"
-  iw dev "$iface" set power_save "$1" 2>/dev/null
-done