Partial revert of "Disable StatusBarTests due to flakes."

Only disable the flakey metrics tests. The other tests in
this class are fine. Also use @Ignore instead of commenting
out @Test.

This reverts commit 63b55435e8406f3235876da2e672fc8d890fc7c2.

Change-Id: I023e63be18dba3659cabe4db9ae1245ccafe835c
1 file changed