message: Update the display name of the Java runtime stacks
  The Tomcat and Java SE runtime stacks have GA-ed
diff: @@ -146,15 +146,15 @@ export class SiteRuntimeStep extends AzureWizardPromptStep<IAppServiceWizardCont
  },
  {
  name: 'tomcat|8.5-jre8',
  - displayName: '[Preview] Tomcat 8.5 (JRE 8)'
  + displayName: 'Tomcat 8.5 (JRE 8)'
  },
  {
  name: 'tomcat|9.0-jre8',
  - displayName: '[Preview] Tomcat 9.0 (JRE 8)'
  + displayName: 'Tomcat 9.0 (JRE 8)'
  },
  {
  name: 'java|8-jre8',
  - displayName: '[Preview] Java SE (JRE 8)'
  + displayName: 'Java SE (JRE 8)'
  },
  {
  name: 'python|3.7',
  