Revert "Initialize Docs repository: https://github.com/MicrosoftDocs/office-docs-powershell of branch main"

This reverts commit 3b572bd.

Author: garycentric

.openpublishing.publish.config.json

@@ -195,7 +195,10 @@
   "sync_notification_subscribers": [],
   "branches_to_filter": [],
   "git_repository_branch_open_to_public_contributors": "main",
+  "skip_source_output_uploading": false,
   "need_preview_pull_request": true,
+  "enable_incremental_build": false,
+  "contribution_branch_mappings": {},
   "dependent_repositories": [
     {
       "path_to_root": "_themes",
@@ -209,16 +212,12 @@
       "Publish"
     ]
   },
+  "need_generate_pdf_url_template": false,
   "targets": {
     "Pdf": {
       "template_folder": "_themes.pdf"
     }
   },
-  "docs_build_engine": {},
-  "skip_source_output_uploading": false,
-  "enable_incremental_build": false,
-  "contribution_branch_mappings": {},
-  "need_generate_pdf_url_template": false,
   "need_generate_intellisense": false,
   "dependent_packages": [
     {
@@ -228,5 +227,8 @@
       "target_framework": "net45",
       "version": "latest"
     }
-  ]
-}
+  ],
+  "docs_build_engine": {
+    "name": "docfx_v3"
+  }
+}