[Typescript-Angular] canConsumeForm function can be simplified

[seofernando25]

Description

typescript-angular's canConsumeForm can be simplified

Swagger-codegen version

3.X

Suggest a fix/enhancement

https://github.com/swagger-api/swagger-codegen/blob/2c5329a3af70c6ea5b42bab9b01d348b5674f605/modules/swagger-codegen/src/main/resources/typescript-angular/api.service.mustache#L77-L85

canConsumeForm is equivalent to just return consumes.includes('multipart/form-data');

/**
 * @param consumes string[] mime-types
 * @return true: consumes contains 'multipart/form-data', false: otherwise
 */
private canConsumeForm(consumes: string[]): boolean {
  return consumes.includes('multipart/form-data');
}