Removed Traffic meter

Change-Id: I866c34414bbb66c14bc9163b0bef0d48f37a0a93
Add network usage stats to status bar. [1/2]
PS2:
Get the time delta between updates and use that to show
average bytes per second.

Change-Id: I63771220333a32063f675e6fc38c9aadb6de4274