Proper clean up when Ui test automation service is unregistered or dies.

The UI test automation service was not removed from the list of
enabled and installed service where it was explicitly added on
registration. This was leaving the accessibility manager service
in an inconsistent state.

bug:8185435

Change-Id: Ice17cdef361fe98ce34f8dd01ec11dbad6c4d0c2

services/java/com/android/server/accessibility/AccessibilityManagerService.java

@@ -2105,6 +2105,8 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
                 if (mIsAutomation) {
                     // We no longer have an automation service, so restore
                     // the state based on values in the settings database.
+                    userState.mInstalledServices.remove(mAccessibilityServiceInfo);
+                    userState.mEnabledServices.remove(mComponentName);
                     userState.mUiAutomationService = null;
                     userState.mUiAutomationServiceClient = null;
                 }