Remove min/max values for RectFSpringAnim2.

- Fixes crash on landscape
- We added this to stop the windows from going way out of bounds. But we no
  longer need it since we've tightened up the stiffness so that
  it would take a super aggressive swipe/high velocity for the window
  to go out of bounds

Bug: 188617892
Test: manual
Change-Id: Icc2a0af0a1b26985502ddbc7a5a370e7eecdb346