revert(knex): add a few more tests to verify aliases overriding

Revers commit 4e837db

tests/QueryBuilder.test.ts

@@ -2792,30 +2792,6 @@ describe('QueryBuilder', () => {
     expect(qb.getQuery()).toEqual('delete from `author2` where `id` = ?');
   });
 
-  test('override previously used aliases in select statement', async () => {
-    const qb = orm.em.createQueryBuilder(Publisher2, 'p').select('p.*');
-    qb.from(Author2, 'a');
-    expect(qb.getQuery()).toEqual('select `a`.* from `author2` as `a`');
-  });
-
-  test('override previously used aliases in where clause', async () => {
-    const qb = orm.em.createQueryBuilder(Publisher2, 'p').where({ 'p.id': 1 });
-    qb.from(Author2, 'a');
-    expect(qb.getQuery()).toEqual('select `a`.* from `author2` as `a` where `a`.`id` = ?');
-  });
-
-  test('override previously used aliases in order by clause', async () => {
-    const qb = orm.em.createQueryBuilder(Publisher2, 'p').orderBy({ 'p.id': 'desc' });
-    qb.from(Author2, 'a');
-    expect(qb.getQuery()).toEqual('select `a`.* from `author2` as `a` order by `a`.`id` desc');
-  });
-
-  test('override previously used aliases in join statement', async () => {
-    const qb = orm.em.createQueryBuilder(Publisher2, 'p').select(['p.*', 'b.*']).leftJoin('books', 'b');
-    qb.from(Author2, 'a');
-    expect(qb.getQuery()).toEqual('select `a`.*, `b`.* from `author2` as `a` left join `book2` as `b` on `a`.`id` = `b`.`publisher_id`');
-  });
-
   test('from an entity with alias', async () => {
     const qb = orm.em.createQueryBuilder(Publisher2, 'p');
     qb.from(Author2, 'a');