The demo used an obsolete/wrong tag name for TransitionSet
(set, instead of the correct transitionSet). This caused the demo
to crash at runtime and to produce incorrect example docs in the
Transition reference pages.
Issue #11346546 Transition ApiDemo crashes
Change-Id: I12142870ac4f7412e5809b9cdad3ca3015449d77
New demo in ApiDemos: animations/Simple Transitions
Issue #10460684 KLP API Review: android.view.transition and android.animation
Change-Id: I2c376343c2b945240bc5f3619786e9354a8c1a10
