It's unnecessary set deprecate group for option 'enabled'
It's unnecessary set deprecate group for option 'enabled'

Option 'profiler_enabled' and 'enabled' are in same config group,
Acording to class DeprecatedOpt's docstring :
  If no group is specified for a DeprecatedOpt option (i.e. the group is
  None), lookup will happen within the same group the new option is in.

So it's unnecessary to set deprecated_group for option 'enabled'.
Change-Id: I90fec168b9f278669ef491cdde2c59d9f57a483d

openstack/osprofiler,openstack/osprofiler,stackforge/osprofiler,stackforge/osprofiler,openstack/osprofiler,stackforge/osprofiler