removed unusused header

Author: paul-szczepanek-arm

features/FEATURE_BLE/targets/TARGET_NORDIC/TARGET_NRF51/source/nRF5xn.h

@@ -22,10 +22,8 @@
 #include "ble/BLEInstanceBase.h"
 #include "ble/generic/GenericGattClient.h"
 #include "ble/generic/GenericSecurityManager.h"
-#include "SimpleEventQueue.h"
 #include "nRF5xPalSecurityManager.h"
 
-
 #include "nRF5xGap.h"
 #include "nRF5xGattServer.h"
 

features/FEATURE_BLE/targets/TARGET_NORDIC/TARGET_NRF52/source/nRF5xn.h

@@ -22,7 +22,6 @@
 #include "ble/BLEInstanceBase.h"
 #include "ble/generic/GenericGattClient.h"
 #include "ble/generic/GenericSecurityManager.h"
-#include "SimpleEventQueue.h"
 #include "nRF5xPalSecurityManager.h"
 
 #include "nRF5xGap.h"