Revert "debugobject: Ensure pool refill (again)"

This reverts commit 503e5547 which is
commit 0af462f1

 upstream.

Guenter reports problems with it, and it's not quite obvious why, so
revert it for now.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/d35b1ff1-e198-481c-b1be-9e22445efe06@roeck-us.net
Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>