PCI: Drop is_64bit_address() and is_mask_bit_support() macros

is_64bit_address() and is_mask_bit_support() don't provide any useful
abstraction, so drop them.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 1688c26..aaaf954 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -555,9 +555,9 @@
 		return -ENOMEM;
 
 	entry->msi_attrib.is_msix	= 0;
-	entry->msi_attrib.is_64		= is_64bit_address(control);
+	entry->msi_attrib.is_64		= !!(control & PCI_MSI_FLAGS_64BIT);
 	entry->msi_attrib.entry_nr	= 0;
-	entry->msi_attrib.maskbit	= is_mask_bit_support(control);
+	entry->msi_attrib.maskbit	= !!(control & PCI_MSI_FLAGS_MASKBIT);
 	entry->msi_attrib.default_irq	= dev->irq;	/* Save IOAPIC IRQ */
 	entry->msi_attrib.pos		= dev->msi_cap;