Remove Transformation.reversed()

This method was neither called nor implemented anywhere. I forgot to
remove it in ag/30153745.

Bug: 376438969
Test: N/A unused code deletion
Flag: EXEMPT unused code deletion
Change-Id: I62688e420e6e1b6715d5a583060bf2fd4157571e
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/transformation/Transformation.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/transformation/Transformation.kt
index 74a3ead..d9b131e 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/transformation/Transformation.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/transformation/Transformation.kt
@@ -35,12 +35,6 @@
      * The matcher that should match the element(s) to which this transformation should be applied.
      */
     val matcher: ElementMatcher
-
-    /*
-     * Reverse this transformation. This is called when we use Transition(from = A, to = B) when
-     * animating from B to A and there is no Transition(from = B, to = A) defined.
-     */
-    fun reversed(): Transformation = this
 }
 
 internal class SharedElementTransformation(