PCI: dw-rockchip: Remove unused PCIE_CLIENT_GENERAL_DEBUG definition

The PCIE_CLIENT_GENERAL_DEBUG register offset is defined but never
used in the driver. It's presence adds noise to the register map.

Remove this unused definition to keep the register list minimal and aligned
with actual hardware usage.

Signed-off-by: Hans Zhang <18255117159@163.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patch.msgid.link/20250427125316.99627-2-18255117159@163.com

Author: Hans Zhang

drivers/pci/controller/dwc/pcie-dw-rockchip.c

@@ -47,7 +47,6 @@
 #define PCIE_CLIENT_GENERAL_CONTROL	0x0
 #define PCIE_CLIENT_INTR_STATUS_LEGACY	0x8
 #define PCIE_CLIENT_INTR_MASK_LEGACY	0x1c
-#define PCIE_CLIENT_GENERAL_DEBUG	0x104
 #define PCIE_CLIENT_HOT_RESET_CTRL	0x180
 #define PCIE_CLIENT_LTSSM_STATUS	0x300
 #define PCIE_LTSSM_ENABLE_ENHANCE	BIT(4)