don't hide blueprint course header background on conferences page
don't hide blueprint course header background on conferences page

closes #ADMIN-1131

Change-Id: Ia15ba19aeeabdd7ea6ecbd20e64a9e55af4dfba3
Reviewed-on: https://gerrit.instructure.com/155409
Tested-by: Jenkins
Reviewed-by: Mysti Sadler <431d062aff1e8f25416b3a7b732fe6effdb03f9a@instructure.com>
Reviewed-by: Ed Schiebel <0ca8a83847a5889cf05cb219c0ab09f6b646243b@instructure.com>
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>
QA-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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