remove BOM from files

Change-Id: Ia4b4bb3be0ed6e933c77d58f8e9879b1370e9537
Signed-off-by: Laurent Carlier <laurent.carlier@arm.com>
diff --git a/include/armnn/IRuntime.hpp b/include/armnn/IRuntime.hpp
index 48ad7c4..c9a71ca 100644
--- a/include/armnn/IRuntime.hpp
+++ b/include/armnn/IRuntime.hpp
@@ -1,4 +1,4 @@
-//
+//
 // Copyright © 2017 Arm Ltd. All rights reserved.
 // SPDX-License-Identifier: MIT
 //