Do no set up VBUS pin mode in init()

This is already done by usbd_conf.c which is also the place where it is
read, so no need to do it again here.

Author: matthijskooijman

cores/arduino/wiring.c

@@ -64,12 +64,6 @@ void init( void )
 
     stm32l0_dma_configure(STM32L0_ADC_IRQ_PRIORITY, STM32L0_UART_IRQ_PRIORITY, STM32L0_UART_IRQ_PRIORITY);
 
-#if defined(STM32L0_CONFIG_PIN_VBUS)
-    if (STM32L0_CONFIG_PIN_VBUS != STM32L0_GPIO_PIN_NONE) {
-        stm32l0_gpio_pin_configure(STM32L0_CONFIG_PIN_VBUS, (STM32L0_GPIO_PARK_HIZ | STM32L0_GPIO_PUPD_PULLDOWN | STM32L0_GPIO_OSPEED_LOW | STM32L0_GPIO_OTYPE_PUSHPULL | STM32L0_GPIO_MODE_INPUT));
-    }
-#endif
-
 #if defined(STM32L0_CONFIG_PIN_VBAT)
     stm32l0_gpio_pin_configure(STM32L0_CONFIG_PIN_VBAT, (STM32L0_GPIO_PARK_NONE | STM32L0_GPIO_MODE_ANALOG));
 #endif