Email Not Completely Deleted after Deleting an account

**Description:** If one of the user deletes their account it should be fully deleted in account while semmle doesnt delete it completely. ## Steps To Reproduce: * Register email1 * After registering, confirm your account. * once email1 is confirmed. add another email which we will name as email2 * Now Verify the email of email2. * Delete account of email1 completely * Now register email2 * after registering email2, confirm the account of email2 * after confirming with the link given in email2 it will automatically logged in and you will notice that email1 and email2 is in there and no need confirmation for email1. **Fix/Remediation** As per the rules, once you delete your data in an account it should be completely deleted. it should be another life for an account. ## Impact User know that after deleting account to semmle, their data will be lost to semmle's database however, it still there which is a privacy violation.