Remove ubi images (PowerShell#844)

Author: anamnavi

.vsts-ci/previewReleaseStage.yml

@@ -60,26 +60,6 @@ stages:
       buildKitValue: 1
       channel: ${{ parameters.channel }}
       channelPath: ${{ parameters.channelPath }}
-  - template: /.vsts-ci/releaseJob.yml@self
-    parameters:
-      archName: 'Build_linux_amd64'
-      imageName: ubi8
-      artifactSuffix: ubi8
-      poolOS: 'linux'
-      poolHostArchitecture: 'amd64'
-      buildKitValue: 1
-      channel: ${{ parameters.channel }}
-      channelPath: ${{ parameters.channelPath }}
-  - template: /.vsts-ci/releaseJob.yml@self
-    parameters:
-      archName: 'Build_linux_amd64'
-      imageName: ubi9
-      artifactSuffix: ubi9
-      poolOS: 'linux'
-      poolHostArchitecture: 'amd64'
-      buildKitValue: 1
-      channel: ${{ parameters.channel }}
-      channelPath: ${{ parameters.channelPath }}
   - template: /.vsts-ci/releaseJob.yml@self
     parameters:
       archName: 'Build_linux_amd64'