It is declared to be the intention of the city council that the sections, paragraphs, sentences, clauses and phrases of the code are severable, and if any phrase, clause, sentence, paragraph or section of this code shall be declared unconstitutional or invalid by the valid judgment or decree of a court of competent jurisdiction, such unconstitutionality or invalidity shall not affect any of the remaining phrases, clauses, sentences, paragraphs and sections of this code. (Prior code § 1-3-63)