Remove extraneous fields that result in false alarm in Mono.Android.xml.

Changes in enumification-helpers and applying the changes from the new tools dotnet/android#1044 results in  https://jenkins.mono-project.com/job/xamarin-android-pr-builder/2106/ :

	17:49:44 ABI BREAK IN: Mono.Android.dll
	17:49:46 <!-- start namespace Android.Views --> <div>
	17:49:46 <h2>Namespace Android.Views</h2>
	17:49:46 <!-- start type Display --> <div>
	17:49:46 <h3>Type Changed: Android.Views.Display</h3>
	17:49:46 <p>Removed field:</p>
	17:49:46
	17:49:46 <pre>
	17:49:46 	<span class='removed removed-field breaking' data-is-breaking>public static const int StateDozing;</span>
	17:49:46 </pre>
	17:49:46
	17:49:46 </div> <!-- end type Display -->
	17:49:46 <!-- start type View --> <div>
	17:49:46 <h3>Type Changed: Android.Views.View</h3>
	17:49:46 <p>Modified fields:</p>
	17:49:46 <pre>
	17:49:46 <div data-is-breaking>	public const <span class='removed removed-inline removed-breaking-inline'>int</span> <span class='added '>TextAlignment</span> TextAlignmentResolvedDefault = 131072;
	17:49:46 </div></pre>
	17:49:46
	17:49:46 </div> <!-- end type View -->
	17:49:46 <!-- start type WindowManagerLayoutParams --> <div>
	17:49:46 <h3>Type Changed: Android.Views.WindowManagerLayoutParams</h3>
	17:49:46 <p>Removed field:</p>
	17:49:46
	17:49:46 <pre>
	17:49:46 	<span class='removed removed-field breaking' data-is-breaking>public static const int TypeKeyguard;</span>
	17:49:46 </pre>
	17:49:46
	17:49:46 </div> <!-- end type WindowManagerLayoutParams -->
	17:49:46
	17:49:46 </div> <!-- end namespace Android.Views -->
	17:49:47
	make[2]: *** [check] Error 1
	17:49:47 make[1]: *** [run-api-compatibility-tests] Error 2
	17:49:47 make: *** [run-all-tests] Error 2
	17:49:47 + exit 1

But what are they?

- STATE_DOZING in https://developer.android.com/reference/android/view/Display.html ... it doesn't exist!
- TEXT_ALIGNMENT_RESOLVED_DEFAULT in https://developer.android.com/reference/android/view/View.html ... ditto!
- TYPE_KEYGUARD in https://developer.android.com/reference/android/view/WindowManager.LayoutParams.html ... neither!

They are all false alarm. They should vanish.

Author: atsushieno