SystemUI: fix duplicate day in notification pulldown header

showing the "day of the week" once is enough in the 1st line
in notification header besides the clock.
this removes the 2nd "day of the week" in the 2nd line.

Change-Id: Ia8258eceb8a5921b6b3d194e0bb7b72408ce9a5a
Merge "SystemUI: fix duplicate day in notification pulldown header" into kk