dt-bindings: mmc: Remove bindings for Intel Thunder Bay SoC"

Remove Thunder Bay specific code as the product got cancelled
and there are no end customers or users.

Signed-off-by: A, Rashmi <rashmi.a@intel.com>
Reviewed-by: Hunter, Adrian <adrian.hunter@intel.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230316120549.21486-3-rashmi.a@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: rashmia-A

Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml

@@ -88,12 +88,6 @@ properties:
         description:
           For this device it is strongly suggested to include
           arasan,soc-ctl-syscon.
-      - items:
-          - const: intel,thunderbay-sdhci-5.1   # Intel Thunder Bay eMMC PHY
-          - const: arasan,sdhci-5.1
-        description:
-          For this device it is strongly suggested to include
-          clock-output-names and '#clock-cells'.
 
   reg:
     maxItems: 1
@@ -309,22 +303,3 @@ examples:
                    <&scmi_clk KEEM_BAY_PSS_SD0>;
           arasan,soc-ctl-syscon = <&sd0_phy_syscon>;
     };
-
-  - |
-    #define EMMC_XIN_CLK
-    #define EMMC_AXI_CLK
-    #define TBH_PSS_EMMC_RST_N
-    mmc@80420000 {
-          compatible = "intel,thunderbay-sdhci-5.1", "arasan,sdhci-5.1";
-          interrupts = <GIC_SPI 714 IRQ_TYPE_LEVEL_HIGH>;
-          reg = <0x80420000 0x400>;
-          clocks = <&scmi_clk EMMC_XIN_CLK>,
-                   <&scmi_clk EMMC_AXI_CLK>;
-          clock-names = "clk_xin", "clk_ahb";
-          phys = <&emmc_phy>;
-          phy-names = "phy_arasan";
-          assigned-clocks = <&scmi_clk EMMC_XIN_CLK>;
-          clock-output-names = "emmc_cardclock";
-          resets = <&rst_pss1 TBH_PSS_EMMC_RST_N>;
-          #clock-cells = <0x0>;
-    };