[Cashtab] [deprecate BCH from token send p1] Remove BCH param from generateTokenTxInput

Summary:
T2730

Stack to deprecate BCH param from token tx functions

p1, remove BCH param from generateTokenTxInput

Test Plan:
grep -r generateTokenTxInput and make sure BCH is removed from all called instances
npm test
npm start and send a token tx, burn a token, mint a token

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Differential Revision: https://reviews.bitcoinabc.org/D12671