Don't delete SSL key/cert on a msfdb reinit if a user asked not to delete existing configs

[ebleiweiss-r7]

Fixes #11490

Verification

• With a remote data service already established...
• ./msfdb reinit
• Say no to Would you like to delete your existing data and configurations?
• Verify you see the output MSF web service appears to be started, but may not operate as expected
• ./msfconsole
• db_disconnect local-https-data-service
• db_connect --token <existing token> --cert ~/.msf4/msf-ws-cert.pem --skip-verify https://localhost:5443
• Verify that you can interact with the remote data service from msfconsole

[mkienow-r7]

Release Notes

Fixes an issue with the msfdb reinit command in which the web service SSL key and cert .pem files were deleted regardless of the user answering no to delete existing data and configurations.