Don't delete kind sections when there are >1 emails in the raw contact

* Also fix jank when deleting compact editor input fields
  We were animating removal of input fields when there was more
  than one field in the raw contact (i.e. Editor.deleteEditor)
  but not when hiding entire KindViewSections
  (i.e. KindSectionView.setVisibility(GONE)).  When animating
  KindSectionView removals, we must mark it for deletion
  since we need to re-assess the number of KindSectionViews that
  are visibile (in order to show icons) before the removal
  animation finishes (the visibility is set to GONE at the end
  of the animation).

* Prevent nicknames from being deleted

Bug 22228718
Bug 22299522

Change-Id: I28dad184c53e89f067d54675fcb3e7ebac9d971e