chore: remove import and type

Author: AlbinaBlazhko17

packages/core/src/rules/ajv.ts

@@ -5,7 +5,6 @@ import { escapePointer } from '../ref-utils.js';
 
 import type { Location } from '../ref-utils.js';
 import type { ValidateFunction, ErrorObject } from '@redocly/ajv/dist/2020.js';
-import type { ValidateFunction as ValidateFunctionDraft04 } from 'ajv-draft-04';
 import type { ResolveFn } from '../walk.js';
 
 let ajvInstance: Ajv | null = null;
@@ -80,7 +79,7 @@ function getAjvDraft04Validator(
   schema: any,
   loc: Location,
   resolve: ResolveFn
-): ValidateFunctionDraft04 | undefined {
+): ValidateFunction | undefined {
   const ajvDraft04 = getAjvDraft04();
 
   const dereferencedSchema = dereferenceSchema(schema, loc.source.absoluteRef, resolve);