remove unused file transactionReceiptResolver.js

apps/remix-ide/src/lib/transactionReceiptResolver.js

-'use strict'
-
-module.exports = class TransactionReceiptResolver {
-  constructor (blockchain) {
-    this._transactionReceipts = {}
-    this.blockchain = blockchain
-  }
-
-  resolve (tx, cb) {
-    if (this._transactionReceipts[tx.hash]) {
-      return cb(null, this._transactionReceipts[tx.hash])
-    }
-    this.blockchain.web3().eth.getTransactionReceipt(tx.hash, (error, receipt) => {
-      if (!error) {
-        this._transactionReceipts[tx.hash] = receipt
-        cb(null, receipt)
-      } else {
-        cb(error)
-      }
-    })
-  }
-}
-