cpu: Delete the unused sched_break_pc(_sys) functions.

Change-Id: I2adae2858897e665fd28cfe9de3fdcf95ffc2a2e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21779
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed