After bfcb79fc ("PCI/ERR: Run error recovery callbacks for all affected
devices"), AER errors are always cleared by the PCI core and drivers don't
need to do it themselves.

Remove calls to pci_cleanup_aer_uncorrect_error_status() from device
driver error recovery functions.
Signed-off-by: NOza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog, remove PCI core changes, remove unused variables]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>