Expand PIP to the normal size when menu actions don't fit

Instead of resizing to bounds larger than the default size
when the menu is shown, resize to the normal/default bounds
instead.
Also, remove the unused animateToMinimizedState() method.

Bug: 184789365
Test: enter PIP, pinch resize to min size, tap to poke menu -
verify that PIP expands to the default size

Change-Id: Ib0d7780fce2ec9157fb0f533d67b175ce699f40b