Revert "Updated D3 js"
Revert "Updated D3 js"

This reverts commit 540e54afe31d5fff318714c552257226b6ca99db.

skashyap7/polar.usc.edu,USCDataScience/polar.usc.edu,USCDataScience/polar.usc.edu,USCDataScience/polar.usc.edu,skashyap7/polar.usc.edu,USCDataScience/polar.usc.edu,skashyap7/polar.usc.edu,USCDataScience/polar.usc.edu,USCDataScience/polar.usc.edu,skashyap7/polar.usc.edu,USCDataScience/polar.usc.edu