By Maria Ward-Brennan Close Brothers will not pay any dividends on its ordinary shares for the current financial year as it prepares for potential financial impact as a result of a review by the watchdog. The news sent shares down 13 per cent in London on Thursday morning. The Financial Conduct Authority (FCA) announced last week that it would review historic claims of unfair costs on discretionary car finance commissions and ensure consumers receive compensation if it uncovers evidence of widespread misconduct. Shares in FTSE 250-listed Close Brothers have plummeted 55 per cent since the FCA …