Remove the step indicator for the gesture tutorial

This change removes the pill indicator for the legacy gesture navigation
tutorial. It causes accessibility issues and is not needed for the current version
of the gesture tutorial.

Fix: 378415116
Bug: 400485351
Test: Run tutorial and observe no more indicator for the steps
Flag: EXEMPT bugfix
Change-Id: I33c3d7131752c2118ef03bf7d76389e855b836f4