[NFC] Reformat code in events test (#1497)

Signed-off-by: Stuart Brady <stuart.brady@arm.com>

test_conformance/events/testBase.h

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -26,6 +26,3 @@
 #include "procs.h"
 
 #endif // _testBase_h
-
-
-