Update Test

Author: taufik-nurrohman

test/api/registerAlias.js

@@ -4,12 +4,6 @@ const hljs   = require('../../build');
 const should = require('should');
 
 describe('.registerAlias()', () => {
-  it('should get an existing language', () => {
-    const result = hljs.getLanguage('python');
-
-    result.should.be.instanceOf(Object);
-  });
-
   it('should get an existing language by alias', () => {
     hljs.registerAlias('jquery', {
       languageName: 'javascript'