Remove chunks storage from bug report template

Signed-off-by: Andrew Bloomgarden <[email protected]>

Author: aughr

.github/ISSUE_TEMPLATE/bug_report.md

@@ -22,9 +22,5 @@ A clear and concise description of what you expected to happen.
  - Infrastructure: [e.g., Kubernetes, bare-metal, laptop]
  - Deployment tool: [e.g., helm, jsonnet]
 
-**Storage Engine**
-- [ ] Blocks
-- [ ] Chunks
-
 **Additional Context**
 <!--  Additional relevant info which can help us debug this issue easily like Logs, Configuration etc. -->