Remove no connection primary key test #48488
Merged
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This test was added in b3407c8 at a time when Rails was reading the
primary_keys
off a hash stored onconnection
. We no longer do that in Active Record so this test isn't really necessary. I'm removing it because it was flaky. I attempted to fix it in #48473 but realized today it's not testing the same thing it was before. After discussing it with Matthew, I've decided to remove it.