remove superfluous loading of BaseConfiguration

Author: zorkow

testsuite/tests/input/tex/Base.test.ts

@@ -1,6 +1,5 @@
 import { beforeEach, describe, it } from '@jest/globals';
 import { toXmlMatch, setupTex, tex2mml } from '#helpers';
-import '#js/input/tex/base/BaseConfiguration';
 
 beforeEach(() => setupTex(['base']));
 

testsuite/tests/input/tex/Tag.test.ts

@@ -1,6 +1,5 @@
 import { beforeEach, describe, it } from '@jest/globals';
 import { toXmlMatch, setupTex, tex2mml } from '#helpers';
-import '#js/input/tex/base/BaseConfiguration';
 import '#js/input/tex/ams/AmsConfiguration';
 
 describe('TagAll', () => {