sched/fair: Update overutilized detection

sched/fair: Update overutilized detection

Checking uclamp_min is useless and counterproductive for overutilized state
as misfit can now happen without being in overutilized state.

Since commit e5ed0550c04c ("sched/fair: unlink misfit task from cpu overutilized")
util_fits_cpu returns -1 when uclamp_min is above capacity which is not
considered as cpu overutilized.

Remove the useless rq_util_min parameter.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/20260213101751.3121899-1-vincent.guittot@linaro.org