test: Drop the function for running hush tests

Use the new suite-runner to run these tests instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd_ut.c b/test/cmd_ut.c
index 6111717..c892891 100644
--- a/test/cmd_ut.c
+++ b/test/cmd_ut.c
@@ -178,7 +178,7 @@
 	SUITE(addrmap),
 #endif
 #if CONFIG_IS_ENABLED(HUSH_PARSER)
-	SUITE_CMD(hush, do_ut_hush),
+	SUITE(hush),
 #endif
 #ifdef CONFIG_CMD_LOADM
 	SUITE_CMD(loadm, do_ut_loadm),