dt-bindings: display/msm: remove edp.txt

eDP driver is being removed, so drop bindings description.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211001165011.441945-4-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

Documentation/devicetree/bindings/display/msm/edp.txt

-Qualcomm Technologies Inc. adreno/snapdragon eDP output
-
-Required properties:
-- compatible:
-  * "qcom,mdss-edp"
-- reg: Physical base address and length of the registers of controller and PLL
-- reg-names: The names of register regions. The following regions are required:
-  * "edp"
-  * "pll_base"
-- interrupts: The interrupt signal from the eDP block.
-- power-domains: Should be <&mmcc MDSS_GDSC>.
-- clocks: device clocks
-  See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
-- clock-names: the following clocks are required:
-  * "core"
-  * "iface"
-  * "mdp_core"
-  * "pixel"
-  * "link"
-- #clock-cells: The value should be 1.
-- vdda-supply: phandle to vdda regulator device node
-- lvl-vdd-supply: phandle to regulator device node which is used to supply power
-  to HPD receiving chip
-- panel-en-gpios: GPIO pin to supply power to panel.
-- panel-hpd-gpios: GPIO pin used for eDP hpd.
-
-
-Example:
-	mdss_edp: qcom,mdss_edp@fd923400 {
-			compatible = "qcom,mdss-edp";
-			reg-names =
-				"edp",
-				"pll_base";
-			reg =	<0xfd923400 0x700>,
-				<0xfd923a00 0xd4>;
-			interrupt-parent = <&mdss_mdp>;
-			interrupts = <12 0>;
-			power-domains = <&mmcc MDSS_GDSC>;
-			clock-names =
-				"core",
-				"pixel",
-				"iface",
-				"link",
-				"mdp_core";
-			clocks =
-				<&mmcc MDSS_EDPAUX_CLK>,
-				<&mmcc MDSS_EDPPIXEL_CLK>,
-				<&mmcc MDSS_AHB_CLK>,
-				<&mmcc MDSS_EDPLINK_CLK>,
-				<&mmcc MDSS_MDP_CLK>;
-			#clock-cells = <1>;
-			vdda-supply = <&pma8084_l12>;
-			lvl-vdd-supply = <&lvl_vreg>;
-			panel-en-gpios = <&tlmm 137 0>;
-			panel-hpd-gpios = <&tlmm 103 0>;
-	};