nimble/controller: Remove few not needed #ifdefs

There is no need for special handling of single iteration loop as
compiler should catch this.

X-Original-Commit: 9878a220f4f9bd0fda1c4f452425cb3475a0a2d9

nimble/controller/include/controller/ble_ll_adv.h

@@ -127,10 +127,8 @@ int ble_ll_adv_set_adv_params(uint8_t *cmd, uint8_t instance, int is_multi);
 /* Read advertising channel power */
 int ble_ll_adv_read_txpwr(uint8_t *rspbuf, uint8_t *rsplen);
 
-#if MYNEWT_VAL(BLE_MULTI_ADV_SUPPORT)
 int ble_ll_adv_multi_adv_cmd(uint8_t *cmd, uint8_t cmdlen, uint8_t *rspbuf,
                              uint8_t *rsplen);
-#endif
 
 /*---- API used by BLE LL ----*/
 /* Send the connection complete event */

nimble/controller/src/ble_ll_adv.c

@@ -1638,10 +1638,8 @@ ble_ll_adv_event_done(struct os_event *ev)
 int
 ble_ll_adv_can_chg_whitelist(void)
 {
-    int rc;
     struct ble_ll_adv_sm *advsm;
-
-#if MYNEWT_VAL(BLE_MULTI_ADV_SUPPORT)
+    int rc;
     int i;
 
     rc = 1;
@@ -1653,15 +1651,6 @@ ble_ll_adv_can_chg_whitelist(void)
             break;
         }
     }
-#else
-    advsm = &g_ble_ll_adv_sm[0];
-    if (advsm->adv_enabled &&
-        (advsm->adv_filter_policy != BLE_HCI_ADV_FILT_NONE)) {
-        rc = 0;
-    } else {
-        rc = 1;
-    }
-#endif
 
     return rc;
 }