Removed OTPseudonym::CertfileExists.
Removed OTClient::ConnectToTheFirstServerOnList.
Removed OTString::ConvertToLowerCase.
Removed OTIdentifier::CopyTo.
Removed OTCrypto::DeriveKey and cleaned up comments.
Removed OTEnvelope::(Get|Set)AsBookendedString.
Removed OTSocket::GetBindingPath, GetConnectPath.
Removed OTContract::GetContractPublicKey, GetFoldername..
Removed unused functions in OTPseudonym.
Removed OTLog::PushMemlogBack, OTLogStream::overflow.
Removed OTSymmetricKey::ReGenerateHashCheck.
Removed OTServerConnection::SignAndSend.