The existing Zoning Ordinance, adopted April 2, 1956, as amended through December 19, 1990, and entitled "The Towamencin Township Zoning Ordinance of 1956," and all supplements and amendments thereto, upon adoption of this chapter, are hereby repealed. This chapter does not repeal provisions of other laws or ordinances except those specifically or implicitly repealed by this chapter. Further provided, however, if the present chapter is held to be ineffective or invalid by reason of some irregularity in, or impediment to, its passage, this repealer shall also be ineffective as aforesaid. Then, and only in that event, the Zoning Ordinance of 1956, together with its supplements and amendments, would remain in full force and effect, only and until such time as the irregularity in, or impediment to, this chapter has been overcome.