Remove extra newline

Co-authored-by: teor <teor@riseup.net>

responsible_disclosure.md

@@ -30,5 +30,3 @@ Zcash is a technology that provides strong privacy. Notes are encrypted to their
 The standard describes reporters of vulnerabilities including full details of an issue, in order to reproduce it. This is necessary for instance in the case of an external researcher both demonstrating and proving that there really is a security issue, and that security issue really has the impact that they say it has - allowing the development team to accurately prioritize and resolve the issue.
 
 In the case of a counterfeiting bug, however, just like in CVE-2019-7167, we might decide not to include those details with our reports to partners ahead of coordinated release, so long as we are sure that they are vulnerable.
-
-