[Mono.Android] Remove Transformation.TypeAlpha

Bumps to xamarin-android-api-compatibility/master/9cfa6cc9

When attempting to bump monodroid to use a recent xamarin-android, the
API consistency checks failed:

	<h1>### API BREAK BETWEEN v4.3 and v4.4</h1>
	...
	<h3>Type Changed: Android.Views.Animations.Transformation</h3>
	<p>Removed properties:</p>

	<pre>
		<span class='removed removed-property breaking' data-is-breaking>public static int TypeAlpha { get; set; }</span>
		<span class='removed removed-property breaking' data-is-breaking>public static int TypeBoth { get; set; }</span>
		<span class='removed removed-property breaking' data-is-breaking>public static int TypeIdentity { get; set; }</span>
		<span class='removed removed-property breaking' data-is-breaking>public static int TypeMatrix { get; set; }</span>
	</pre>

This breakage was introduced by commit 9a73c4c/PR #1045, which
unfortunately wasn't caught at the time.

Specifically, commit a301764:

	diff --git a/src/Mono.Android/map.csv b/src/Mono.Android/map.csv
	index 74319bc..dc707d0 100644
	--- a/src/Mono.Android/map.csv
	+++ b/src/Mono.Android/map.csv
	...
	-1,Android.Views.Animations.TransformationTypes,Alpha,android/view/animation/Transformation.TYPE_ALPHA,1
	...
	+19,Android.Views.Animations.TransformationTypes,Alpha,android/view/animation/Transformation.TYPE_ALPHA,1

Update `src/Mono.Android/map.csv` so that `Transformation.TYPE_ALPHA` and
related enum values are changed in API-18+, not API-19+. This fixes the
inter-API-level compatibility issue.

Author: jonpryor

external/xamarin-android-api-compatibility

@@ -2907,10 +2907,10 @@
 10,Android.Views.Animations.DelayOrder,Normal,android/view/animation/LayoutAnimationController.ORDER_NORMAL,0
 10,Android.Views.Animations.DelayOrder,Random,android/view/animation/LayoutAnimationController.ORDER_RANDOM,2
 10,Android.Views.Animations.DelayOrder,Reverse,android/view/animation/LayoutAnimationController.ORDER_REVERSE,1
-19,Android.Views.Animations.TransformationTypes,Alpha,android/view/animation/Transformation.TYPE_ALPHA,1
-19,Android.Views.Animations.TransformationTypes,Both,android/view/animation/Transformation.TYPE_BOTH,3
-19,Android.Views.Animations.TransformationTypes,Identity,android/view/animation/Transformation.TYPE_IDENTITY,0
-19,Android.Views.Animations.TransformationTypes,Matrix,android/view/animation/Transformation.TYPE_MATRIX,2
+18,Android.Views.Animations.TransformationTypes,Alpha,android/view/animation/Transformation.TYPE_ALPHA,1
+18,Android.Views.Animations.TransformationTypes,Both,android/view/animation/Transformation.TYPE_BOTH,3
+18,Android.Views.Animations.TransformationTypes,Identity,android/view/animation/Transformation.TYPE_IDENTITY,0
+18,Android.Views.Animations.TransformationTypes,Matrix,android/view/animation/Transformation.TYPE_MATRIX,2
 10,Android.Views.InputMethods.ImeAction,ImeMaskAction,android/view/inputmethod/EditorInfo.IME_MASK_ACTION,255
 10,Android.Views.InputMethods.ImeAction,ImeNull,android/view/inputmethod/EditorInfo.IME_NULL,0
 10,Android.Views.InputMethods.ImeAction,Done,android/view/inputmethod/EditorInfo.IME_ACTION_DONE,6