tests: remove has_wl_drm from struct client

The wl_drm protocol is not being used by the test client. So
remove 'bool has_wl_drm' from 'struct client' and also the
branch that initializes this variable in handle_global().

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>

tests/weston-test-client-helper.c

@@ -792,8 +792,6 @@ handle_global(void *data, struct wl_registry *registry,
 					 &weston_test_interface, version);
 		weston_test_add_listener(test->weston_test, &test_listener, test);
 		client->test = test;
-	} else if (strcmp(interface, "wl_drm") == 0) {
-		client->has_wl_drm = true;
 	}
 }
 

tests/weston-test-client-helper.h

@@ -57,7 +57,6 @@ struct client {
 	struct surface *surface;
 	int has_argb;
 	struct wl_list global_list;
-	bool has_wl_drm;
 	struct wl_list output_list; /* struct output::link */
 };