Remove hardcode. esp. batches as a function of current year

Multiple files in the repository are a byproduct of failed attempts and serve no puropse, remove them
dbcreation.sql
/db
sac_election.env

Hey,

There are potentially exposed credentials in:

• https://github.com/zense/sac_elections_2020/blob/master/sac_election.env
• https://github.com/zense/sac_elections_2020/blob/master/dbcreation.sql
• https://github.com/zense/sac_elections_2020/blob/master/sac_elections/oauth_settings.yml
• https://github.com/zense/sac_elections_2020/blob/master/sac_elections/sac_elections/settings.py.example
• https://github.com/zense/sac_elections_2020/tree/master/db

Some of these may not be critical as the elections have passed, but patterns can be drawn from available credentials and tested against other Zense projects. For instance, devPass123. Additionally, if this repo is used for elections again next year, credentials could be accidentally re-used.

If you must store credentials along with code, consider saving them as ENV variables in a file and encrypt the file before committing with githooks. Or even better, try git-secret.io.