arm64: dts: ti: iot2050: Drop unused ecap0 PWM

In fact, this was never used by the final device, only dates back to
first prototypes.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/r/6131d44e0505ca3efbb9039e5f2b637a3e139312.1699087938.git.jan.kiszka@siemens.comSigned-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi

@@ -355,12 +355,6 @@ AM65X_IOPAD(0x0008, PIN_INPUT,  0)  /* (B21) I2C1_SCL */
 			AM65X_IOPAD(0x000c, PIN_INPUT,  0)  /* (E21) I2C1_SDA */
 		>;
 	};
-
-	ecap0_pins_default: ecap0-default-pins {
-		pinctrl-single,pins = <
-			AM65X_IOPAD(0x0010, PIN_INPUT,  0)  /* (D21) ECAP0_IN_APWM_OUT */
-		>;
-	};
 };
 
 &wkup_uart0 {
@@ -557,12 +551,6 @@ &mcu_cpsw {
 	status = "disabled";
 };
 
-&ecap0 {
-	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&ecap0_pins_default>;
-};
-
 &sdhci1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;