build: drop the message about tests having been built successfully

This is a leftover from early times. We now have multiple different
test suites and none prints such a message. Drop it.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
1 file changed