Remove unused FAB animations

(cherry picked from commit ab2bdfc508fb87367c59fb52839c89e700e2f4ac)

app/src/main/res/anim/fab_hide_to_bottom.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<translate xmlns:android="http://schemas.android.com/apk/res/android"
-           android:interpolator="@android:interpolator/accelerate_quint"
-           android:fromYDelta="0"
-           android:toYDelta="30%p"
-           android:duration="200" />

app/src/main/res/anim/fab_show_from_bottom.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<translate xmlns:android="http://schemas.android.com/apk/res/android"
-           android:interpolator="@android:interpolator/accelerate_cubic"
-           android:fromYDelta="30%p"
-           android:toYDelta="0"
-           android:duration="300" />