(revert later) skip docgen

extra/azure-pipelines/build-linux.yml

@@ -43,16 +43,6 @@ jobs:
         inputs:
           artifactName: 'linuxBinaries'
           targetPath: out
-      - script: |
-          set -ex
-          make -s xmldoc
-          cat >extra/doc/info.json <<EOL
-            {
-              "commit": "$(Build.SourceVersion)",
-              "branch": "$(Build.SourceBranchName)"
-            }
-          EOL
-        displayName: Build xmldoc
       - task: PublishPipelineArtifact@0
         inputs:
           artifactName: 'xmldoc'