Revert "[ApiDiff] Let the CI show warnings when ApiDiff has make issues (#14276)" (#14295)

This reverts commit 26474fb81e.

tools/devops/automation/scripts/bash/compare.sh

@@ -47,7 +47,7 @@ report_error ()
 	rm -f "$COMPARE_FAILURE_FILE"
 	echo "*** Comparing API & creating generator diff failed ***"
 	MESSAGE="*** Comparing API & creating generator diff failed ***"
-	exit 1
+	exit 0
 }
 trap report_error ERR
 

tools/devops/automation/templates/build/api-diff.yml

@@ -11,7 +11,6 @@ steps:
   displayName: 'API & Generator comparison'
   condition: and(succeeded(), contains(variables['configuration.SkipPublicJenkins'], 'False'))
   name: apiGeneratorDiff
-  continueOnError: true
   env:
     BUILD_REVISION: 'jenkins'
     PR_ID:  ${{ parameters.prID }} # reusing jenkins vars, to be fixed
@@ -41,7 +40,6 @@ steps:
       MESSAGE=$(printf ":fire: Failed to create API Diff from stable (%s/console) :fire:")
       echo "##vso[task.setvariable variable=APIDIFF_MESSAGE;isOutput=true]$MESSAGE"
       echo "##vso[task.setvariable variable=APIDIFF_BUILT;isOutput=true]False"
-      exit 1
     }
     trap report_error ERR