Remove duplicate yml template file (#210)

* Delete common upload artifact template

* Move upload artifact step from coreclr to common

eng/pipelines/coreclr/templates/upload-artifact-step.yml

-parameters:
-  rootFolder: ''
-  includeRootFolder: false
-  archiveType: ''
-  tarCompression: ''
-  archiveExtension: ''
-  artifactName: ''
-  displayName: ''
-
-steps:
-  # Zip Artifact
-  - task: ArchiveFiles@2
-    displayName: 'Zip ${{ parameters.displayName }}'
-    inputs:
-      rootFolderOrFile:  ${{ parameters.rootFolder }}
-      archiveFile:       $(Build.StagingDirectory)/${{ parameters.artifactName }}${{ parameters.archiveExtension }}
-      archiveType:       ${{ parameters.archiveType }}
-      tarCompression:    ${{ parameters.tarCompression }}
-      includeRootFolder: ${{ parameters.includeRootFolder }}
-
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish ${{ parameters.displayName }}'
-    inputs:
-      pathtoPublish: $(Build.StagingDirectory)/${{ parameters.artifactName }}${{ parameters.archiveExtension }}
-      artifactName:  ${{ parameters.artifactName }}