Revert "sysfs: handle duplicate removal attempts in sysfs_remove_group()"

Revert "sysfs: handle duplicate removal attempts in sysfs_remove_group()"

This reverts commit a616b05ebde73a88d65458f0ce88e15d4a507e9b.

The root cause of these "inverted" sysfs removals have now been found,
so there is no need for this patch.  Keep this functionality around so
that this type of error doesn't show up in driver code again.

Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>