Artifacts with methods to old smart contracts

[tafonina]

Subject of the issue

In the code there are calls to old or nonexistent methods of smart contracts:
example file ui/wallet/src/ProxeusEthereum/services/ProxeusFS.js

line 8

async XESAmountPerFile ({ providers }) {
    return this.contract.methods.getXESPrice().call()
  }

line 25

fileHasSP (hash, spAddress) {
    return this.contract.methods.fileHasSP(hash, spAddress).call()
  }

• getXESPrice doesnt exist in ProxeusFS contract
• fileHasSP exists only in old contract (repo storage-app)

Solution

check is ProxeusFS service is used, get rid of artifacts check other cases of unused contract methods:
The actual list of ProxeusFS smart contract methods:

• registerFile
• verifyFile
• signFile
• getFileSigners

[slavas490]

@tafonina @loleg https://github.com/sprotest/proxeus-core/tree/feature/remove-old-smartcontract-methods