PCI: versatile: Drop flag PCI_ENABLE_PROC_DOMAINS

PCI_ENABLE_PROC_DOMAINS is only used on powerpc and doesn't do anything
for the Versatile host driver, so let's drop it. I'm not sure how or why
I had this to begin with. PCI_ENABLE_PROC_DOMAINS was never used on ARM.

Link: https://lore.kernel.org/r/20200722022514.1283916-2-robh@kernel.orgSigned-off-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/controller/pci-versatile.c

@@ -151,7 +151,6 @@ static int versatile_pci_probe(struct platform_device *pdev)
 	 */
 	writel(0, versatile_cfg_base[0] + PCI_INTERRUPT_LINE);
 
-	pci_add_flags(PCI_ENABLE_PROC_DOMAINS);
 	pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
 	bridge->dev.parent = dev;