chore: Rm GitHub Action PR size labeler (#2256)

Signed-off-by: John McBirde <jpmmcbride@gmail.com>

.github/workflows/size-labeler.yml

@@ -1,33 +0,0 @@
-# Reference: https://github.com/CodelyTV/pr-size-labeler
-
-name: size-labeler
-
-on: [pull_request_target]
-
-permissions:
-  contents: read
-
-jobs:
-  size-labeler:
-    permissions:
-      pull-requests: write  # for codelytv/pr-size-labeler to add labels & comment on PRs
-    runs-on: ubuntu-latest
-    name: Label the PR size
-    steps:
-      - uses: codelytv/pr-size-labeler@v1.8.1
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          xs_label: 'size/XS'
-          xs_max_size: '10'
-          s_label: 'size/S'
-          s_max_size: '24'
-          m_label: 'size/M'
-          m_max_size: '99'
-          l_label: 'size/L'
-          l_max_size: '200'
-          xl_label: 'size/XL'
-          fail_if_xl: 'false'
-          message_if_xl: >
-            'This PR exceeds the recommended size of 200 lines.
-            Please make sure you are NOT addressing multiple issues with one PR.
-            Note this PR might be rejected due to its size.’