Removed Changelog check Github Action (#2453)

## Changes
Removed Changelog check Github Action

## Why
Check for the Changelog and the necessity to add `NO_CHANGELOG=true`
appears to be quite noisy, so removing this

NO_CHANGELOG=true

.github/PULL_REQUEST_TEMPLATE.md

@@ -8,7 +8,5 @@ For example, were there any decisions behind the change that are not reflected i
 ## Tests
 <!-- How have you tested the changes? -->
 
----
 <!-- If your PR needs to be included in the release notes for next release,
-remove the line below and add a separate entry in NEXT_CHANGELOG.md as part of your PR. -->
+add a separate entry in NEXT_CHANGELOG.md as part of your PR. -->
-NO_CHANGELOG=true

.github/workflows/next-changelog.yml

@@ -1,105 +0,0 @@
-# Generated file. DO NOT EDIT.
-name: Check for NEXT_CHANGELOG.md Changes
-
-on:
-  # Use pull_request_target to have access to GitHub API
-  pull_request_target:
-
-jobs:
-  check-next-changelog:
-    runs-on:
-      group: databricks-deco-testing-runner-group
-      labels: ubuntu-latest-deco
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Fetch list of changed files
-        id: changed-files
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Use the GitHub API to fetch changed files
-          files=$(gh pr view ${{ github.event.pull_request.number }} --json files -q '.files[].path')
-          
-          # Sanitize to avoid code injection
-          sanitized_files=$(echo "$files" | sed 's/[^a-zA-Z0-9._/-]/_/g')
-          
-          # Store the sanitized list of files in a temporary file to avoid env variable issues
-          echo "$sanitized_files" > modified_files.txt
-
-      - name: Fetch PR message
-        id: pr-message
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Use the GitHub API to fetch the PR message
-          pr_message=$(gh pr view ${{ github.event.pull_request.number }} --json body -q '.body')
-          
-          # Sanitize the PR message to avoid code injection, keeping the equal sign
-          sanitized_pr_message=$(echo "$pr_message" | sed 's/[^a-zA-Z0-9._/-=]/_/g')
-          
-          # Store the sanitized PR message
-          echo "$sanitized_pr_message" > pr_message.txt
-
-      - name: Verify NEXT_CHANGELOG.md was modified or PR message contains NO_CHANGELOG=true
-        run: |
-          # Read the sanitized files and PR message from the temporary files
-          modified_files=$(cat modified_files.txt)
-          pr_message=$(cat pr_message.txt)
-          
-          # Check if NEXT_CHANGELOG.md exists in the list of changed files
-          echo "Changed files: $modified_files"
-          if ! echo "$modified_files" | grep -q "NEXT_CHANGELOG.md"; then
-            echo "NEXT_CHANGELOG.md not modified."
-          
-            # Check if PR message contains NO_CHANGELOG=true
-            if echo "$pr_message" | grep -q "NO_CHANGELOG=true"; then
-              echo "NO_CHANGELOG=true found in PR message. Skipping changelog check."
-              exit 0
-            else
-              echo "WARNING: file NEXT_CHANGELOG.md not changed. If this is expected, add NO_CHANGELOG=true to the PR message."
-              exit 1
-            fi
-          fi
-
-      - name: Comment on PR with instructions if needed
-        if: failure() # This step will only run if the previous step fails (i.e., if NEXT_CHANGELOG.md was not modified and NO_CHANGELOG=true was not in the PR message)
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Check if a comment exists with the instructions
-          previous_comment_ids=$(gh api "repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments" \
-            --jq '.[] | select(.body | startswith("<!-- NEXT_CHANGELOG_INSTRUCTIONS -->")) | .id')
-          echo "Previous comment IDs: $previous_comment_ids"
-
-          # If no previous comment exists, add one with instructions
-          if [ -z "$previous_comment_ids" ]; then
-            echo "Adding instructions comment."
-            gh pr comment ${{ github.event.pull_request.number }} --body \
-            "<!-- NEXT_CHANGELOG_INSTRUCTIONS -->
-            Please ensure that the NEXT_CHANGELOG.md file is updated with any relevant changes. 
-            If this is not necessary for your PR, please include the following in your PR description:
-            NO_CHANGELOG=true
-            and rerun the job."
-          fi
-
-      - name: Delete instructions comment on success
-        if: success() # This step will only run if the previous check passed (i.e., if NEXT_CHANGELOG.md was modified or NO_CHANGELOG=true is in the PR message)
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Check if there is a previous instructions comment
-          previous_comment_ids=$(gh api "repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments" \
-            --jq '.[] | select(.body | startswith("<!-- NEXT_CHANGELOG_INSTRUCTIONS -->")) | .id')
-          
-            # If a comment exists, delete it
-            if [ -n "$previous_comment_ids" ]; then
-              echo "Deleting previous instructions comment."
-              for comment_id in $previous_comment_ids; do
-                gh api "repos/${{ github.repository }}/issues/comments/$comment_id" --method DELETE
-              done
-            else
-              echo "No instructions comment found to delete."
-            fi