treewide: remove extra semicolons

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/xen/swiotlb-xen.c

@@ -54,7 +54,7 @@ u64 start_dma_addr;
 
 static dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
 {
-	return phys_to_machine(XPADDR(paddr)).maddr;;
+	return phys_to_machine(XPADDR(paddr)).maddr;
 }
 
 static phys_addr_t xen_bus_to_phys(dma_addr_t baddr)