Remove ro.hdmi.wake_on_hotplug

wake_on_hotplug is not CEC specific

cherry picked from https://android-review.googlesource.com/c/platform/frameworks/base/+/1285956

Bug: 154122694
Test: m services.core
Change-Id: Ifd06566d958ef1b08aa84012366b4641ee5032f7
Merged-In: Ifd06566d958ef1b08aa84012366b4641ee5032f7