Revert "bump the redis gem to 3.3.2"
Revert "bump the redis gem to 3.3.2"

This reverts commit 1962b61afd3ee24a13583f29b2dd809fa46fee54.

Change-Id: I16b5057a83da82e5a300a953a0899fcdc52f993c
Reviewed-on: https://gerrit.instructure.com/99476
Tested-by: Jenkins
Reviewed-by: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Product-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
QA-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>

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