Do not set tooltips on items in list-based menus.

The presence of a tooltip (specifically, long click detection
logic required by it) interferes with touch processing in
AbsListView.

Bug: 35726766
Test: android.cts.widget.PopupTest#testItemViewAttributes
Change-Id: Ida49c07e5f2e3e06f5994f2cc4aa10ef112376d0