Idle tasks are initialized via __sched_fork() twice, which can be trivially
avoided as pointed out here:

    https://lore.kernel.org/all/8734p4ymqj.ffs@tglx

As this got ignored, the tasteless hack in init_scx_entity() to work around
it stayed and found it's way into mainline.

Mop it up after the fact to not further proliferate technical debt.

Thanks,

	tglx
---
 core.c |   13 ++++---------
 ext.c  |    7 +------
 2 files changed, 5 insertions(+), 15 deletions(-)