API UnregisterStateDriver

UnregisterStateDriver cancels a prior call to RegisterStateDriver for a given frame and stateid.
 UnregisterStateDriver(frame, state)
== Arguments ==
frame
* the frame which you wish to unregister the state driver from
state
* String - an arbitrary identifier string for this conditional (coerced into lower case), or "visibility"
== Returns ==
none
== Notes ==
It is not necessary to use this function when overwriting an existing state driver with a new one; simply calling RegisterStateDriver will overwrite a previous one provided the state-id is the same. Only use UnregisterStateDriver when the desired result is halting the automation entirely.
The implementation is included as part of FrameXML in FrameXML/SecureStateDriver.lua.
==Examples==
Registering a state driver to show a frame during combat:
 local frame = CreateFrame("Frame")
 RegisterStateDriver(frame, "visibility", "[combat]show;hide"); -- the frame is now seen during combat
Removing the state driver:
 UnregisterStateDriver(frame, "visibility"); -- the frame no longer responds to entering/leaving combat