By Huw Jones LONDON (Reuters) -Britain’s twin-track company listing regime could be simplified into a single entry point to the London Stock Exchange to attract more startups, the Financial Conduct Authority (FCA) said on Thursday. Britain wants to bolster London’s attractiveness as a global location for listings as it continues to trail New York in bringing tech companies to the market, and faces added competition from Amsterdam since Brexit. The FCA said in a discussion paper on Thursday that one suggestion was companies wishing to list in London would no longer have to choose between two di…