Remove slack notifications (#202)

http://b/297034826

Author: rosbo

Jenkinsfile

@@ -14,7 +14,7 @@ pipeline {
     GIT_COMMIT_SUBJECT = sh(returnStdout: true, script:"git log --format=%s -n 1 HEAD").trim()
     GIT_COMMIT_AUTHOR = sh(returnStdout: true, script:"git log --format='%an' -n 1 HEAD").trim()
     GIT_COMMIT_SUMMARY = "`<https://github.com/Kaggle/docker-rstats/commit/${GIT_COMMIT}|${GIT_COMMIT_SHORT}>` ${GIT_COMMIT_SUBJECT} - ${GIT_COMMIT_AUTHOR}"
-    SLACK_CHANNEL = sh(returnStdout: true, script: "if [[ \"${GIT_BRANCH}\" == \"main\" ]]; then echo \"#kernelops\"; else echo \"#builds\"; fi").trim()
+    MATTERMOST_CHANNEL = sh(returnStdout: true, script: "if [[ \"${GIT_BRANCH}\" == \"main\" ]]; then echo \"#kernelops\"; else echo \"#builds\"; fi").trim()
     // See b/152450512
     GITHUB_PAT = credentials('github-pat')
     PRETEST_TAG = sh(returnStdout: true, script: "if [[ \"${GIT_BRANCH}\" == \"main\" ]]; then echo \"ci-pretest\"; else echo \"${GIT_BRANCH}-pretest\"; fi").trim()
@@ -125,16 +125,13 @@ pipeline {
 
   post {
     failure {
-      slackSend color: 'danger', message: "*<${env.BUILD_URL}console|${JOB_NAME} failed>* ${GIT_COMMIT_SUMMARY} @kernels-backend-ops", channel: env.SLACK_CHANNEL
-      mattermostSend color: 'danger', message: "*<${env.BUILD_URL}console|${JOB_NAME} failed>* ${GIT_COMMIT_SUMMARY} @kernels-backend-ops", channel: env.SLACK_CHANNEL
+      mattermostSend color: 'danger', message: "*<${env.BUILD_URL}console|${JOB_NAME} failed>* ${GIT_COMMIT_SUMMARY} @kernels-backend-ops", channel: env.MATTERMOST_CHANNEL
     }
     success {
-      slackSend color: 'good', message: "*<${env.BUILD_URL}console|${JOB_NAME} passed>* ${GIT_COMMIT_SUMMARY}", channel: env.SLACK_CHANNEL
-      mattermostSend color: 'good', message: "*<${env.BUILD_URL}console|${JOB_NAME} passed>* ${GIT_COMMIT_SUMMARY}", channel: env.SLACK_CHANNEL
+      mattermostSend color: 'good', message: "*<${env.BUILD_URL}console|${JOB_NAME} passed>* ${GIT_COMMIT_SUMMARY}", channel: env.MATTERMOST_CHANNEL
     }
     aborted {
-      slackSend color: 'warning', message: "*<${env.BUILD_URL}console|${JOB_NAME} aborted>* ${GIT_COMMIT_SUMMARY}", channel: env.SLACK_CHANNEL
-      mattermostSend color: 'warning', message: "*<${env.BUILD_URL}console|${JOB_NAME} aborted>* ${GIT_COMMIT_SUMMARY}", channel: env.SLACK_CHANNEL
+      mattermostSend color: 'warning', message: "*<${env.BUILD_URL}console|${JOB_NAME} aborted>* ${GIT_COMMIT_SUMMARY}", channel: env.MATTERMOST_CHANNEL
     }
   }
 }