remove BOM from files

Change-Id: Ia4b4bb3be0ed6e933c77d58f8e9879b1370e9537
Signed-off-by: Laurent Carlier <laurent.carlier@arm.com>
diff --git a/tests/MnistDatabase.cpp b/tests/MnistDatabase.cpp
index c1c5f63..9abc3a6 100644
--- a/tests/MnistDatabase.cpp
+++ b/tests/MnistDatabase.cpp
@@ -1,4 +1,4 @@
-//
+//
 // Copyright © 2017 Arm Ltd. All rights reserved.
 // SPDX-License-Identifier: MIT
 //