It is hereby declared to be the intention of the Board of Aldermen that the sections, paragraphs, sentences, clauses and phrases of this code are severable; and if any phrase, clause, sentence, paragraph or section of this code shall be declared unconstitutional by the valid judgment or decree of any court of competent jurisdiction, such unconstitutionality shall not affect any of the remaining phrases, clauses, sentences, paragraphs and sections of this code, since the same would have been enacted without the incorporation in this code of any such unconstitutional phrase, clause, sentence, paragraph or section.