The simplest answer would be No, you can't. Since the money contributed to these is already taxed. The only tax-deductible charges are those undertaken to manage or to take care of your unregistered investments.
Fees you paid for services in connection with your Pooled Registered Pension Plan (PRPP), Registered Retirement Income Fund (RRIF), Registered Retirement Savings Plan (RRSP), or Tax-Free Savings Account (TFSA) do not qualify as these are “Registered Investments”.
To learn more, read the TurboTax blog on Claiming Carrying Charges.
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