Removing empty line in issue template

Author: dcaro

.github/ISSUE_TEMPLATE/az-preview-bug-report.md

@@ -4,7 +4,6 @@ about: Report errors or unexpected behaviors specifically for the Az 4.0  module
 title: ''
 labels: 'Az 4.x Preview', 'Azure PS Team'
 assignees: ''
-
 ---
 
 <!--