It is hereby declared to be the intention of the City Council that the titles, chapters, sections, paragraphs, sentences, clauses and phrases of this code are severable, and if any phrase, clause, sentence, paragraph, chapter, title, or section of this code shall be declared unconstitutional by the valid judgment or decree of a court of competent jurisdiction, such unconstitutionality shall not affect any of the remaining phrases, clauses, sentences, paragraphs, chapters, titles and sections of this code.