microblaze/PCI: Remove unnecessary pci_bus_find_capability() declaration

pci_bus_find_capability() is declared in include/linux/pci.h.

Remove the pci_bus_find_capability() declaration from
arch/microblaze/include/asm/pci.h.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/pci.h

@@ -102,9 +102,6 @@ extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
 
 extern void pcibios_resource_survey(void);
 
-extern int pci_bus_find_capability(struct pci_bus *bus,
-						unsigned int devfn, int cap);
-
 struct file;
 extern pgprot_t	pci_phys_mem_access_prot(struct file *file,
 					 unsigned long pfn,