Revert "Merge pull request #4545 from edx/renzo/bi-analytics-overhaul"

This reverts commit 252038c37664f90d5967f93454a6f23a0938258e, reversing
changes made to 7caf8c53b1a32ded0da4a50429f397efb7ba1ffc.
Merge branch 'release'