pci: xilinx: Remove unused field 'hose' from struct xilinx_pcie

This field has never been used as the driver has been DM-based since the
beginning. Drop it.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

drivers/pci/pcie_xilinx.c

@@ -14,11 +14,9 @@
 
 /**
  * struct xilinx_pcie - Xilinx PCIe controller state
- * @hose: The parent classes PCI controller state
  * @cfg_base: The base address of memory mapped configuration space
  */
 struct xilinx_pcie {
-	struct pci_controller hose;
 	void *cfg_base;
 };