remove extra GGL header info

Change-Id: I09f0d1b64a7a31eb2e926f19b69b7bafbacc7787

hipamd/include/hip/hcc_detail/concepts.hpp

@@ -20,9 +20,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
 
-//
-// Created by alexv on 25/10/16.
-//
 #pragma once
 
 namespace glo_tests // Documentation only.

hipamd/include/hip/hcc_detail/grid_launch_v2.hpp

@@ -20,9 +20,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
 
-//
-// Created by alexv on 25/10/16.
-//
 #pragma once
 
 #include "concepts.hpp"