Remove dead code from test_userevents (#473)
Remove dead code from test_userevents (#473)

This code probably predates the move to the test framework and is
no longer useful.

Signed-off-by: Kévin Petit <7be082ac62c87f3fb90b426eef925ff08291362b@free.fr>
KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS