Revert "Settings: safe headset volume option (2 of 2)"

It's hardcoded right now

This reverts commit d53832e23516226bcfbb2e173a866331421c7edb.

Conflicts:
	res/values/pa_strings.xml
	src/com/android/settings/SoundSettings.java
Merge remote-tracking branch 'settings/kitkat-remix' into remix-legacy
Cleanup Sound settings

1. Remove volume button wake, it's already in button settings
2. Move headset hook option to button settings, also use SettingSystemCheckBox preference to make it more easier.
Merge pull request #15 from AOSPAL/remix-legacy

Merge