tests: drm_open_any doesn't fail

Or more precisely: It already has an igt_require. So we cant ditch it
from tests.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

tests/kms_pipe_crc_basic.c

@@ -219,7 +219,6 @@ igt_main
 		const char *cmd = "pipe A none";
 
 		data.drm_fd = drm_open_any();
-		igt_require(data.drm_fd >= 0);
 
 		igt_set_vt_graphics_mode();