Replace translationYFactor with just translationY

Now that we don't have quick scrub, the only state that has a non-zero translation is all apps,
which just uses that to have a slight parallax. This is much simpler to define in terms of pixels
like other states do.

Change-Id: I108c8505d85591399256b3475f7566ff51e2c5ad
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index cee1c26..875288a 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -192,13 +192,7 @@
         return getWorkspaceScaleAndTranslation(launcher);
     }
 
-    /**
-     * Returns 2 floats designating how to transition overview:
-     *   scale for the current and adjacent pages
-     *   translationY factor where 0 is top aligned and 0.5 is centered vertically
-     */
-    public float[] getOverviewScaleAndTranslationYFactor(Launcher launcher) {
-        // TODO: Simplify to use a constant value instead of a factor.
+    public float[] getOverviewScaleAndTranslationY(Launcher launcher) {
         return new float[] {1.1f, 0f};
     }