Revert "Yet another commit hash change"

This reverts commit 654cd20fac8c0981fa3a9416033802774ead2444.
Revert "Updating ORA2 requirements commit hash to include PDF uploads"

This reverts commit ac061521255c50b28453a3a47538e2f11616f947.
Merge pull request #152 from Stanford-Online/giulio/revert-ora2-pdf

Giulio/revert ora2 pdf