fix(schematics): remove polyfill.ts from tsconfig.spec.json (jest-project)

Author: skydever

Diff for: packages/schematics/src/collection/jest-project/files/tsconfig.spec.json

@@ -5,6 +5,6 @@
     "module": "commonjs",
     "types": ["jest", "node"]
   },
-  "files": [<% if(!skipSetupFile) { %>"src/test-setup.ts", <% } %>"src/polyfills.ts"],
+  <% if(!skipSetupFile) { %>"files": ["src/test-setup.ts"],<% } %>
   "include": ["**/*.spec.ts", "**/*.d.ts"]
 }

Diff for: packages/schematics/src/collection/jest-project/jest-project.spec.ts

@@ -94,7 +94,7 @@ describe('lib', () => {
         outDir: '../../dist/out-tsc/libs/lib1',
         types: ['jest', 'node']
       },
-      files: ['src/test-setup.ts', 'src/polyfills.ts'],
+      files: ['src/test-setup.ts'],
       include: ['**/*.spec.ts', '**/*.d.ts']
     });
   });
@@ -140,7 +140,7 @@ describe('lib', () => {
         resultTree,
         'libs/lib1/tsconfig.spec.json'
       );
-      expect(tsConfig.files).not.toContain('src/test-setup.ts');
+      expect(tsConfig.files).toBeUndefined();
     });
   });
 });