[Mono.Android] Unbind Cursor.setNotificationUris() (#5124)

Fixes: #5027
Context: dotnet/java-interop#699

The [`Cursor.setnotificationUris(ContentResolver, List<Uri>)`][0]
interface default method was added in API-29.

This introduces an issue when implementing `Android.Database.ICursor`
in API-30+: when binding a Java class that implements `Cursor`:

	// Java
	public class MyCursor implements android.database.Cursor {
	    // …
	}

In the binding `generator` emits for `MyCursor`, the Java-to-managed
marshal method to support `Cursor.setNotificationUris()` does not
compile, as it tries to use a generic type -- `IList<T>` -- without
providing any generic type parameters:

	// C# binding
	public partial class MyCursor : Java.Lang.Object, ICursor {
	    static void n_SetNotificationUris_1 (IntPtr jnienv, IntPtr native__this, IntPtr native_cr, IntPtr native_uris)
	    {
	        var __this  = Java.Lang.Object.GetObject<MyCursor> (jnienv, native__this, JniHandleOwnership.DoNotTransfer);
	        var cr      = Java.Lang.Object.GetObject<ContentResolver> (native_cr, JniHandleOwnership.DoNotTransfer);
	        var uris    = (System.Collections.Generic.IList`1) Java.Lang.Object.GetObject<System.Collections.Generic.IList`1> (native_uris, JniHandleOwnership.DoNotTransfer);
	        __this.SetNotificationUris (cr, uris);
	    }
	}

We had thought that dotnet/java-interop@262743b47 addressed this
issue, but we were mistaken.

The `generator` fix for this scenario seems tricky, so as a workaround
for now we can simply remove the `Cursor.setNotificationUris()` default
method so users can implement the interface.

(Although the method was added in API-29, we don't support
Default Interface Members in API-29, so it was ignored.  Thus, this
problem doesn't show up until API-30+ is used.)

[0]: https://developer.android.com/reference/android/database/Cursor#setNotificationUris(android.content.ContentResolver,%20java.util.List%3Candroid.net.Uri%3E)

Author: jpobst

src/Mono.Android/metadata

@@ -1626,6 +1626,10 @@
   <attr path="/api/package[@name='android.database']/class[@name='CursorJoiner']/method[@name='iterator' and count(parameter)=0]" name="return-not-null">true</attr>
   <attr api-since="24" path="/api/package[@name='android.icu.text']/class[@name='UnicodeSet']/method[@name='iterator' and count(parameter)=0]" name="return-not-null">true</attr>
 
+  <!-- If you try to implement ICursor in API-30+, we generate an invalid invoker for this method due to the
+       generic parameters.  Since this is a default method we can just remove it until that bug is fixed.
+       https://github.com/xamarin/java.interop/issues/699 -->
+  <remove-node api-since="30" path="/api/package[@name='android.database']/interface[@name='Cursor']/method[@name='setNotificationUris' and count(parameter)=2 and parameter[1][@type='android.content.ContentResolver'] and parameter[2][@type='java.util.List&lt;android.net.Uri&gt;']]" />
 
   <!--
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