device-lg-hammerhead: drop post-install script (MR 2548)

This tries to start a service (ofono) that is no longer installed.

fixes 9cb6900fb

[ci:skip-build] already built successfully in CI

device/testing/device-lg-hammerhead/APKBUILD

@@ -1,7 +1,7 @@
 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-lg-hammerhead
 pkgver=2
-pkgrel=27
+pkgrel=28
 pkgdesc="Google Nexus 5"
 url="https://postmarketos.org"
 arch="armv7"
@@ -14,7 +14,6 @@ depends="
 	swclock-offset
 "
 makedepends="devicepkg-dev"
-install="$pkgname.post-install"
 subpackages="$pkgname-weston $pkgname-phosh $pkgname-x11 $pkgname-nonfree-firmware:nonfree_firmware"
 source="
 	bt-module-deps.conf

device/testing/device-lg-hammerhead/device-lg-hammerhead.post-install

@@ -1,4 +0,0 @@
-#!/bin/sh
-
-# Enable ofono
-rc-update add ofono default