Delete Android startup prompt box

Modify packages/apps/Settings/res/layout/fallback_home_finishing_boot.xml and set TextView and ProgressBar to invisible.

diff --git a/packages/apps/Settings/res/layout/fallback_home_finishing_boot.xml b/packages/apps/Settings/res/layout/fallback_home_finishing_boot.xml
index 333eb5e4fa..c8c6310f15 100644
--- a/packages/apps/Settings/res/layout/fallback_home_finishing_boot.xml
+++ b/packages/apps/Settings/res/layout/fallback_home_finishing_boot.xml
@@ -34,6 +34,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textSize="20sp"
+            android:visibility="gone"
             android:textColor="?android:attr/textColorPrimary"
             android:text="@*android:string/android_start_title"/>
 
@@ -42,6 +43,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="12.75dp"
+            android:visibility="gone"
             android:colorControlActivated="?android:attr/textColorPrimary"
             android:indeterminate="true"/>