CBR-492: Remove ability to generate M of N transactions
CBR-492: Remove ability to generate M of N transactions

These transactions require the Plutus and the current version of
Plutus is not officially supported.

input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl