Remove welcome plugin registration

packages/app/package.json

@@ -9,8 +9,8 @@
     "@backstage/core": "^0.5.0",
     "@backstage/plugin-api-docs": "^0.4.3",
     "@backstage/plugin-catalog": "^0.2.14",
-    "@backstage/plugin-catalog-react": "^0.0.1",
     "@backstage/plugin-catalog-import": "^0.3.6",
+    "@backstage/plugin-catalog-react": "^0.0.1",
     "@backstage/plugin-circleci": "^0.2.6",
     "@backstage/plugin-cloudbuild": "^0.2.7",
     "@backstage/plugin-cost-insights": "^0.7.0",
@@ -19,22 +19,21 @@
     "@backstage/plugin-github-actions": "^0.3.0",
     "@backstage/plugin-gitops-profiles": "^0.2.3",
     "@backstage/plugin-graphiql": "^0.2.6",
-    "@backstage/plugin-org": "^0.3.4",
     "@backstage/plugin-jenkins": "^0.3.6",
     "@backstage/plugin-kafka": "^0.2.0",
     "@backstage/plugin-kubernetes": "^0.3.7",
     "@backstage/plugin-lighthouse": "^0.2.8",
     "@backstage/plugin-newrelic": "^0.2.3",
+    "@backstage/plugin-org": "^0.3.4",
     "@backstage/plugin-pagerduty": "0.2.6",
     "@backstage/plugin-register-component": "^0.2.7",
     "@backstage/plugin-rollbar": "^0.2.8",
     "@backstage/plugin-scaffolder": "^0.4.1",
-    "@backstage/plugin-sentry": "^0.3.3",
     "@backstage/plugin-search": "^0.2.6",
+    "@backstage/plugin-sentry": "^0.3.3",
     "@backstage/plugin-tech-radar": "^0.3.3",
     "@backstage/plugin-techdocs": "^0.5.4",
     "@backstage/plugin-user-settings": "^0.2.4",
-    "@backstage/plugin-welcome": "^0.2.4",
     "@backstage/theme": "^0.2.2",
     "@material-ui/core": "^4.11.0",
     "@material-ui/icons": "^4.9.1",

packages/app/src/plugins.ts

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-export { plugin as WelcomePlugin } from '@backstage/plugin-welcome';
 export { plugin as LighthousePlugin } from '@backstage/plugin-lighthouse';
 export { plugin as CatalogPlugin } from '@backstage/plugin-catalog';
 export { plugin as ScaffolderPlugin } from '@backstage/plugin-scaffolder';