Revert "[1/2] Network speed indicator"

This reverts commit e1a40fc1e44ab6051798b6f014d0fe3050571bf4.
updated wallpaper to android L

Change-Id: Ief19aca73b7339663980efb33fda5da7cdf34c87
updated activity :D

Change-Id: Ic949086d8503b2212e38b20d386d07570acd3ff8