Revert "[PATCH] i386/x86_64: Force pci=noacpi on HP XW9300"

This reverts commit 5491d0f3.

As per Andi:

  "After some discussion with people who have the affected system it
   seems best to revert for 2.6.17.  It broke a common BIOS workaround
   and PCI-X still doesn't work.  Alternative is for people to change
   the BIOS which seems to be better right now."
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/kernel/acpi/boot.c

@@ -1066,14 +1066,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
 		     },
 	 },
-	{
-	 .callback = disable_acpi_pci,
-	 .ident = "HP xw9300",
-	 .matches = {
-		    DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-		    DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"),
-		    },
-	},
 	{}
 };