pci: pci_mvebu: Remove unused DECLARE_GLOBAL_DATA_PTR

The global data pointer is not used in this driver, remove it's
declaration.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c
index 4a9b351..9248cbc 100644
--- a/drivers/pci/pci_mvebu.c
+++ b/drivers/pci/pci_mvebu.c
@@ -14,7 +14,6 @@
 #include <dm.h>
 #include <log.h>
 #include <malloc.h>
-#include <asm/global_data.h>
 #include <dm/device-internal.h>
 #include <dm/lists.h>
 #include <dm/of_access.h>
@@ -27,8 +26,6 @@
 #include <linux/ioport.h>
 #include <linux/mbus.h>
 
-DECLARE_GLOBAL_DATA_PTR;
-
 /* PCIe unit register offsets */
 #define SELECT(x, n)			((x >> n) & 1UL)