Cleanup: Remove update-reference-index action

Author: reakaleek

.github/workflows/preview-cleanup.yml

@@ -52,6 +52,3 @@ jobs:
           PR_NUMBER: ${{ github.event.pull_request.number }}
         run: |
           aws s3 rm "s3://elastic-docs-v3-website-preview/${GITHUB_REPOSITORY}/pull/${PR_NUMBER}" --recursive
-
-      - name: 'Update Reference Index'
-        uses: elastic/docs-builder/actions/update-reference-index@main

actions/update-reference-index/action.yml

@@ -67,11 +67,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "update-link-index", "update
 		actions\update-link-index\README.md = actions\update-link-index\README.md
 	EndProjectSection
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "update-reference-index", "update-reference-index", "{9FEC15F6-13F8-40B1-A66A-EB054E49E680}"
-	ProjectSection(SolutionItems) = preProject
-		actions\update-reference-index\action.yml = actions\update-reference-index\action.yml
-	EndProjectSection
-EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "docs-lambda-index-publisher", "src\infra\docs-lambda-index-publisher\docs-lambda-index-publisher.csproj", "{C559D52D-100B-4B2B-BE87-2344D835761D}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "docs-assembler.Tests", "tests\docs-assembler.Tests\src\docs-assembler.Tests\docs-assembler.Tests.csproj", "{CDC0ECF4-6597-4FBA-8D25-5C244F0877E3}"
@@ -156,7 +151,6 @@ Global
 		{4CCE599A-B9FE-4DF2-8763-34CF0A99D4AA} = {BE6011CC-1200-4957-B01F-FCCA10C5CF5A}
 		{6E2ED6CC-AFC1-4E58-965D-6AEC500EBB46} = {245023D2-D3CA-47B9-831D-DAB91A2FFDC7}
 		{6554F917-73CE-4B3D-9101-F28EAA762C6B} = {245023D2-D3CA-47B9-831D-DAB91A2FFDC7}
-		{9FEC15F6-13F8-40B1-A66A-EB054E49E680} = {245023D2-D3CA-47B9-831D-DAB91A2FFDC7}
 		{CDC0ECF4-6597-4FBA-8D25-5C244F0877E3} = {67B576EE-02FA-4F9B-94BC-3630BC09ECE5}
 		{4894063D-0DEF-4B7E-97D0-0D0A5B85C608} = {BE6011CC-1200-4957-B01F-FCCA10C5CF5A}
 		{C559D52D-100B-4B2B-BE87-2344D835761D} = {4894063D-0DEF-4B7E-97D0-0D0A5B85C608}