ci: remove jira issue workflow (#3129)

### Summary

Removes the workflow for creating Jira tickets.

.github/workflows/create_issue.yml

@@ -1,34 +0,0 @@
-name: create_jira_issue
-
-on:
-  issues:
-    types:
-      - opened
-
-jobs:
-  create:
-    runs-on: ubuntu-latest
-    name: Create JIRA Issue
-    steps:
-
-    - name: Login to Jira
-      uses: atlassian/gajira-login@v3
-      env:
-        JIRA_BASE_URL: ${{ secrets.JIRA_BASE_URL }}
-        JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
-        JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}
-
-    - name: Create Jira issue
-      uses: atlassian/gajira-create@v3
-      with:
-        project: CORE
-        issuetype: Task
-        summary: ${{ github.event.issue.title }}
-        description: |
-          Created from github issue: ${{ github.event.issue.html_url }}
-          ----
-          ${{ github.event.issue.body }}
-        fields: '{ "labels": ["github-issue"] }'
-
-    - name: Log created issue
-      run: echo "Issue ${{ steps.create.outputs.issue }} was created"