Delete e2e-test-dispatch-workflow.yaml (#2441)

.github/workflows/e2e-test-dispatch-workflow.yaml

@@ -1,16 +0,0 @@
-name: ARC Reusable Workflow
-on:
-  workflow_dispatch:
-    inputs:
-      date_time:
-        description: 'Datetime for runner name uniqueness, format: %Y-%m-%d-%H-%M-%S-%3N, example: 2023-02-14-13-00-16-791'
-        required: true
-jobs:
-  arc-runner-job:
-    strategy:
-      fail-fast: false
-      matrix:
-        job: [1, 2, 3]
-    runs-on: arc-runner-${{ inputs.date_time }}
-    steps:
-      - run: echo "Hello World!" >> $GITHUB_STEP_SUMMARY