base-files: remove duplicate wps button handler (#15621)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40528 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/files/etc/rc.button/wps

-#!/bin/sh
-
-for dir in /var/run/hostapd-*; do
-	[ -d "$dir" ] || continue
-	hostapd_cli -p "$dir" wps_pbc
-done