fixup! pkg/nimble: Adjust to 1.8.0

This is now in apache/mynewt-nimble#1956

pkg/nimble/contrib/nimble_riot.c

@@ -115,15 +115,6 @@ void nimble_riot_init(void)
     int res;
     (void)res;
 
-    /* This function is documented to need to be called exactly once, but not
-     * part of any headers; it seems that in mynewt it is brought up through
-     * code generated from yaml files.
-     *
-     * We do need to call this, otherwise we get panics quickly from
-     * `g_ble_ll_data.ll_evq` being uninitialized. */
-    extern void ble_ll_init(void);
-    ble_ll_init();
-
 #if !IS_USED(MODULE_MYNEWT_CORE) && IS_ACTIVE(NIMBLE_CFG_CONTROLLER)
     /* in mynewt-nimble and uwb-core OS_CPUTIMER_TIMER_NUM == 5 is NRF_RTC0,
        for nimble this must be used for the BLE stack and must go through