Eleven: Fix back arrow on album view.

Navigating within the Artist tab selecting an artist and then an album
presents a track list containing an ActionBar with a back arrow on it.
The behavior of this back arrow differs from the (correct) behavior of
navigating backwards with a gesture or the devices back button.  Moving
backwards should move the the previous artist overview, but the ActionBar
arrow navigates to the global list of all albums (a different tab) instead.

This change makes the ActionBar arrow simply trigger the default back action
and removes the logic that existed previously.  I'm not sure what it was
originally intended to do, but it seems to no longer be relevant.

Signed-off-by: Craig G <kraigs.android@gmail.com>
Change-Id: I356edccd24f15c1d97385d4b5ee9321ef59f5c0d
1 file changed