* Likely to put pressure on Lloyds, Barclays, Santander UK (Recasts, adds context on other British bank CEO pensions): * Likely to put pressure on Lloyds, Barclays, Santander UK (Recasts, adds context on other British bank CEO pensions) LONDON, Nov 8 (Reuters) - Standard Chartered joined some of its British rivals in cutting its chief executive’s pension allowance on Friday after protests from shareholders, putting pressure on other banks such as Lloyds to follow suit. British banks have faced mounting criticism from investors for awarding their top executives more favourable pension arrangements than the rest of their employees.