remove BOM from files

Change-Id: Ia4b4bb3be0ed6e933c77d58f8e9879b1370e9537
Signed-off-by: Laurent Carlier <laurent.carlier@arm.com>
diff --git a/src/armnn/Runtime.cpp b/src/armnn/Runtime.cpp
index b1b7d51..76b13d1 100644
--- a/src/armnn/Runtime.cpp
+++ b/src/armnn/Runtime.cpp
@@ -1,4 +1,4 @@
-//
+//
 // Copyright © 2017 Arm Ltd. All rights reserved.
 // SPDX-License-Identifier: MIT
 //