Update file header template

Author: mickael-menu

r2-shared-swift.xcodeproj/xcshareddata/IDETemplateMacros.plist

@@ -4,14 +4,9 @@
 <dict>
 	<key>FILEHEADER</key>
 	<string>
-//  ___FILENAME___
-//  ___PROJECTNAME___
-//
-//  Created by ___FULLUSERNAME___ on ___DATE___.
-//
 //  Copyright ___YEAR___ Readium Foundation. All rights reserved.
-//  Use of this source code is governed by a BSD-style license which is detailed
-//  in the LICENSE file present in the project repository where this source code is maintained.
+//  Use of this source code is governed by the BSD-style license
+//  available in the top-level LICENSE file of the project.
 //</string>
 </dict>
 </plist>