Modified instruction

Author: Shubha Narayanan

.github/pull_request_template.md

@@ -1,6 +1,6 @@
 <!--- PR title format: [GH#<gh-issue-id>]: <short-description-of-the-pr> --->
 
-<!--- If your changes apply to the latest release and/or in-development version of OpenShift, open your PR against the `main` branch.--->
+<!--- Open your PR against the `main` branch.--->
 
 Issue:
 <!--- Add a link to the GitHub issue, if applicable. --->