PCI: imx6: Remove surplus imx7d_pcie_init_phy() function

This function essentially duplicates imx7d_pcie_enable_ref_clk(). So remove
it.

Link: https://lore.kernel.org/r/20241126075702.4099164-8-hongxing.zhu@nxp.com
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>

Author: Richard Zhu

drivers/pci/controller/dwc/pci-imx6.c

@@ -395,13 +395,6 @@ static int imx8mq_pcie_init_phy(struct imx_pcie *imx_pcie)
 	return 0;
 }
 
-static int imx7d_pcie_init_phy(struct imx_pcie *imx_pcie)
-{
-	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, 0);
-
-	return 0;
-}
-
 static int imx_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
 	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
@@ -1571,7 +1564,6 @@ static const struct imx_pcie_drvdata drvdata[] = {
 		.clks_cnt = ARRAY_SIZE(imx6q_clks),
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
-		.init_phy = imx7d_pcie_init_phy,
 		.enable_ref_clk = imx7d_pcie_enable_ref_clk,
 		.core_reset = imx7d_pcie_core_reset,
 	},