Revert "restore test: confirmed that yarn tsc fails"

This reverts commit 69a188e613.

plugins/welcome/src/components/WelcomePage/WelcomePage.tsx

@@ -37,13 +37,12 @@ import {
   useApi,
   configApiRef,
 } from '@backstage/core';
-import uaml from './test.yaml'
 
 const WelcomePage = () => {
   const appTitle =
     useApi(configApiRef).getOptionalString('app.title') ?? 'Backstage';
   const profile = { givenName: '' };
-console.log(uaml);
+
   return (
     <Page theme={pageTheme.home}>
       <Header

plugins/welcome/src/components/WelcomePage/test.yaml

@@ -1,4 +0,0 @@
-# this is a test yaml file for import
-rot:
-  - testwork
-  - another item