test: Drop the function for running mem 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 1a69b1c..8ab2904 100644
--- a/test/cmd_ut.c
+++ b/test/cmd_ut.c
@@ -161,7 +161,7 @@
         && defined(CONFIG_MMC_SANDBOX) && defined(CONFIG_MMC_WRITE)
 	SUITE(mbr),
 #endif
-	SUITE_CMD(mem, do_ut_mem),
+	SUITE(mem),
 #if defined(CONFIG_SANDBOX) && defined(CONFIG_CMD_SETEXPR)
 	SUITE_CMD(setexpr, do_ut_setexpr),
 #endif