ARM: dts: qcom: msm8974: Remove bogus cd-gpio pinctrl

No board in mainline uses GPIO 54 for card-detect on sdhc_2, and this
also causes conflict when both sdhc_2 and blsp2_uart4 are used, such as
on qcom-msm8974-lge-nexus5-hammerhead.

Fixes: 1dfe967 ("ARM: dts: qcom-msm8974*: Consolidate I2C/UART/SDHCI")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20231217-msm8974-misc-v1-2-bece1ba2667d@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: z3ntu

arch/arm/boot/dts/qcom/qcom-msm8974.dtsi

@@ -1641,13 +1641,6 @@
 					bias-pull-up;
 					drive-strength = <2>;
 				};
-
-				cd-pins {
-					pins = "gpio54";
-					function = "gpio";
-					bias-disable;
-					drive-strength = <2>;
-				};
 			};
 
 			blsp1_uart2_default: blsp1-uart2-default-state {