Remove @expectedDeprecated like_escape flags from unit tests

This was intended to be a workaround for #5701, but it turns out that it breaks
non-trunk builds.

Reverts r8496 and r8497.

See #5701

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8499 cdf35c40-ae34-48e0-9cc9-0c9da1808c22