opt out by default except where we are testing telemetry

Author: Bamieh

test/common/config.js

@@ -56,6 +56,7 @@ export default function() {
         `--elasticsearch.password=${kibanaServerTestUser.password}`,
         `--home.disableWelcomeScreen=true`,
         '--telemetry.banner=false',
+        '--telemetry.optIn=false',
         // These are *very* important to have them pointing to staging
         '--telemetry.url=https://telemetry-staging.elastic.co/xpack/v2/send',
         '--telemetry.optInStatusUrl=https://telemetry-staging.elastic.co/opt_in_status/v2/send',

x-pack/test/api_integration/config.js

@@ -27,6 +27,8 @@ export async function getApiIntegrationConfig({ readConfigFile }) {
         '--xpack.security.session.idleTimeout=3600000', // 1 hour
         '--optimize.enabled=false',
         '--xpack.endpoint.enabled=true',
+        '--telemetry.optIn=true',
+        '--xpack.endpoint.enabled=true',
         '--xpack.ingestManager.enabled=true',
         '--xpack.ingestManager.fleet.enabled=true',
         '--xpack.endpoint.alertResultListDefaultDateRange.from=2018-01-10T00:00:00.000Z',