Revert^3 "Delay start of bootanimation until after the Runtime APEX is mounted."

This reverts commit a6bb8916b0.

Bootanim doesn't need to be delayed because the APEXes from the system partition are now
activated very early in the boot sequence (far before bootanim is started).

See https://android-review.googlesource.com/q/topic:%22apex_earlymount_base%22+(status:open%20OR%20status:merged)

Bug: 125549215
Test: bootanim is started without being delayed
Change-Id: I367b1a5c6bf08dad770cd2bf7f6d67dbf1a813e6

cmds/bootanimation/bootanim.rc

@@ -2,9 +2,6 @@ service bootanim /system/bin/bootanimation
     class core animation
     user graphics
     group graphics audio
-    # bootanimation depends on libandroidicu in the Runtime APEX.
-    # TODO(b/124939955): Remove this dependency on libandroidicu
-    updatable
     disabled
     oneshot
     writepid /dev/stune/top-app/tasks