remove dev from branch list (llm-d#434)

Signed-off-by: Etai Lev Ran <elevran@gmail.com>

Author: elevran

.github/workflows/ci-pr-checks.yaml

@@ -6,7 +6,6 @@ on:
       - main
   pull_request:
     branches:
-      - dev
       - main
 
 jobs: