Remove unused parts from the PR template

Author: sbueringer

.github/PULL_REQUEST_TEMPLATE.md

@@ -12,16 +12,3 @@ Here are some other tips for you:
 
 **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
 Fixes #
-
-**Special notes for your reviewer**:
-
-_Please confirm that if this PR changes any image versions, then that's the sole change this PR makes._
-
-**Release note**:
-<!--  Write your release note:
-1. Enter your extended release note in the below block. If the PR requires additional action from users switching to the new release, include the string "action required".
-2. If no release note is required, just write "NONE".
--->
-```release-note
-
-```