PCI: pciehp: Remove ignored MRL sensor interrupt events

We queued interrupt events for the MRL being opened or closed, but the code
in interrupt_event_handler() that handles these events ignored them.

Stop enabling MRL interrupts and remove the ignored events.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --cc drivers/pci/hotplug/pciehp.h
Simple merge

diff --cc drivers/pci/hotplug/pciehp_hpc.c
Simple merge