def remove_query(field_uid)
      q = ActiveSupport::JSON.decode(@query[:query])
      q.delete(field_uid)
      @query[:query] = ActiveSupport::JSON.encode(q)
      self
    end
def remove_query(field_uid)
      q = ActiveSupport::JSON.decode(@query[:query])
      q.delete(field_uid)
      @query[:query] = ActiveSupport::JSON.encode(q)
      self
    end
Remove provided query key from custom query if exist.
 @param [String] field_uid

 Example:
    @query   = @stack.content_type('blog').query
    @query.remove_query('author')

 @return [Contentstack::Query]