Remove private types (#178)

Author: mattleibow

source/androidx.fragment/fragment/transforms/Metadata.xml

@@ -1,3 +1,4 @@
 <metadata>
     <attr path="/api/package[@name='androidx.fragment.app']/class[@name='FragmentActivity.HostCallbacks']/method[@name='onGetHost' and count(parameter)=0]" name="managedReturn">Java.Lang.Object</attr>
+    <remove-node path="/api/package[@name='androidx.fragment.app']/interface[@name='Fragment.OnStartEnterTransitionListener']" />
 </metadata>

source/androidx.recyclerview/recyclerview/transforms/Metadata.xml

@@ -3,4 +3,5 @@
     <attr path="/api/package[@name='androidx.recyclerview.widget']/class[@name='RecyclerView.Adapter']/method[@name='bindViewHolder']/parameter[1]" name="type">androidx.recyclerview.widget.RecyclerView.ViewHolder</attr>
     <attr path="/api/package[@name='androidx.recyclerview.widget']/class[@name='RecyclerView.Adapter']/method[@name='onBindViewHolder']/parameter[1]" name="type">androidx.recyclerview.widget.RecyclerView.ViewHolder</attr>
     <attr path="/api/package[@name='androidx.recyclerview.widget']/class[@name='RecyclerView.Adapter']/method[@name='onCreateViewHolder']" name="return">androidx.recyclerview.widget.RecyclerView.ViewHolder</attr>
+    <remove-node path="/api/package[@name='androidx.recyclerview.widget']/interface[@name='RecyclerView.ItemAnimator.ItemAnimatorListener']" />
 </metadata>