don't force utf8 in psych migration
don't force utf8 in psych migration

turns out psych will undo it sometimes and
fail the equality check

refs #CNVS-28386

Change-Id: I5aabcdb2eac66412e15d917611eb0d4b7042cb17
Reviewed-on: https://gerrit.instructure.com/75996
Tested-by: Jenkins
Reviewed-by: Rob Orton <7e09c9d3e96378bf549fc283fd6e1e5b7014cc33@instructure.com>
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>
QA-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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