Change check for syncActive

In Manage Account settings if account is in syncing state
option provided to user is "sync now" which should be
"Cancel sync".

syncActive is set to true if getCurrentSyncsAsUser() returns
an empty list which means there are no active syncs.

syncActive should be set to false if getCurrentSyncsAsUser()
returns an empty list.

Change-Id: If78247a90bbca3e1a12553b6facb1315321f52cf