How much does a 2FA wallet cost?
TrustedCoin's service is not free.
If you disable 2FA (an option available when you restore your wallet from seed), then you will not be charged a cosigning fee.
You must know about it, that 2FA wallet will charge you more fee because there is extra fee goes to Trusted coin. By saying it is bad, crying about it, I believe that you did not read but ignored information about 2FA fee when you create your 2FA wallet.
Note: You don't need a different device to do that, just create a new wallet instead.
It is the same wallet, because if it is a new and different wallet, you will lose your bitcoin. By importing wallet seed, but choose do Disable 2FA, you will have the same wallet, same private keys, same public addresses, just no longer have 2FA.
Bitcoin Transaction Fees - Everything in one