docs: remove dead link in SECURITY.md (#3800)

Co-authored-by: Jonathan Claudius <claudijd@Mac.localdomain>

SECURITY.md

@@ -1,7 +1,6 @@
 # Security Policy
 
 1. [Reporting security problems](#reporting)
-4. [Security Bug Bounties](#bounty)
 2. [Incident Response Process](#process)
 
 <a name="reporting"></a>