Revert "added calibration data for 3 load cells."

This reverts commit 0d43412eaa0ac0a3a15af775359f7bd9a471ec98.
Revert "Revert "added calibration data for 3 load cells.""

This reverts commit 94fc8d2fa0f9b4185f3eaa6e84c38300d405b066.