Revert "add cfx utils"

This reverts commit a247258450981990e6ec3a11fbae04b1959d091e.

revert CFXUtils

 Changes to be committed:
	deleted:    core/java/org/codefirex/utils/ActionHandler.java
	deleted:    core/java/org/codefirex/utils/CFXConstants.java
	deleted:    core/java/org/codefirex/utils/CFXUtils.java
remove cfxutils line

 Changes to be committed:
	modified:   services/java/com/android/server/power/ShutdownThread.java