Revert "test(config): add temp test for defaultConfig"

This reverts commit 063cb124cd.

This file was originally added to test whether the new implementation
of the default config in
`packages/mermaid/src/schemas/config.schema.yaml` matched the old
existing default config in `packages/mermaid/src/oldDefaultConfig.ts`,
and this test is no longer needed.

packages/mermaid/src/config.spec.ts

@@ -1,6 +1,4 @@
 import * as configApi from './config.js';
-import isObject from 'lodash-es/isObject.js';
-import type { MermaidConfig } from './config.type.js';
 
 describe('when working with site config', function () {
   beforeEach(() => {
@@ -71,43 +69,4 @@ describe('when working with site config', function () {
     const config_4 = configApi.getConfig();
     expect(config_4.altFontFamily).toBeUndefined();
   });
-
-  it('test new default config', async function () {
-    const { default: oldDefault } = (await import('./oldDefaultConfig.js')) as {
-      default: Required<MermaidConfig>;
-    };
-    // gitGraph used to not have this option (aka it was `undefined`)
-    oldDefault.gitGraph.useMaxWidth = false;
-
-    // class diagrams used to not have these options set (aka they were `undefined`)
-    oldDefault.class.htmlLabels = false;
-
-    const { default: newDefault } = await import('./defaultConfig.js');
-
-    // check subsets of the objects, to improve vitest error messages
-    // we can't just use `expect(newDefault).to.deep.equal(oldDefault);`
-    // because the functions in the config won't be the same
-    expect(new Set(Object.keys(newDefault))).to.deep.equal(new Set(Object.keys(oldDefault)));
-
-    // @ts-ignore: Expect that all the keys in newDefault are valid MermaidConfig keys
-    Object.keys(newDefault).forEach((key: keyof MermaidConfig) => {
-      // recurse through object, since we want to treat functions differently
-      if (!Array.isArray(newDefault[key]) && isObject(newDefault[key])) {
-        expect(new Set(Object.keys(newDefault[key]))).to.deep.equal(
-          new Set(Object.keys(oldDefault[key]))
-        );
-        for (const key2 in newDefault[key]) {
-          if (typeof newDefault[key][key2] === 'function') {
-            expect(newDefault[key][key2].toString()).to.deep.equal(
-              oldDefault[key][key2].toString()
-            );
-          } else {
-            expect(newDefault[key]).to.have.deep.property(key2, oldDefault[key][key2]);
-          }
-        }
-      } else {
-        expect(newDefault[key]).to.deep.equal(oldDefault[key]);
-      }
-    });
-  });
 });