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

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

This reverts commit 0041fcc3af7681e52805d6430f226da4e0369bc9.

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>