Remove duplicate wp_cache_set() call in BP_Groups_Group::populate().

See #5407

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8008 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Unit Tests: remove copypasta from the testcase class name for XProfile/Field.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8009 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
POT, generated from r8009

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8010 cdf35c40-ae34-48e0-9cc9-0c9da1808c22