ARM: dts: stm32: disable active-discharge for vbus_otg on stm32mp157a-avenger96

Active discharge is not needed on vbus_otg and generate unneeded current
consumption.

Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157a-avenger96.dts

@@ -252,7 +252,6 @@
 				regulator-name = "vbus_otg";
 				interrupts = <IT_OCP_OTG 0>;
 				interrupt-parent = <&pmic>;
-				regulator-active-discharge = <1>;
 			};
 
 			vbus_sw: pwr_sw2 {