Delete the invalid SECURITY.md file from dev (#3613)

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-# Security Policy
-
-This is a project of the [Apache Software Foundation](https://apache.org) and follows the ASF [vulnerability handling process](https://apache.org/security/#vulnerability-handling).
-
-## Reporting a Vulnerability
-
-To report a new vulnerability you have discovered please follow the [ASF vulnerability reporting process](https://apache.org/security/#reporting-a-vulnerability).