Remove unrelated test file

test/unit/tx-utils-test.js

@@ -1,38 +0,0 @@
-const assert = require('assert')
-const ethUtil = require('ethereumjs-util')
-const BN = ethUtil.BN
-
-const TxUtils = require('../../app/scripts/lib/tx-utils')
-
-
-describe('txUtils', function() {
-  let txUtils
-
-  before(function() {
-    txUtils = new TxUtils()
-  })
-
-  describe('addGasBuffer', function() {
-    describe('adds a flat value', function() {
-      it('over an empty value', function() {
-        const input = '0x0'
-        const output = txUtils.addGasBuffer(input)
-        assert.notEqual(output, input, 'changed the value')
-
-        const inputBn = new BN(input, 'hex')
-        const outputBn = new BN(output, 'hex')
-        assert(outputBn.gt(inputBn), 'returns a greater value')
-      })
-
-      it('over an value', function() {
-        const input = '0x123fad'
-        const output = txUtils.addGasBuffer(input)
-        assert.notEqual(output, input, 'changed the value')
-
-        const inputBn = new BN(input, 'hex')
-        const outputBn = new BN(output, 'hex')
-        assert(outputBn.gt(inputBn), 'returns a greater value')
-      })
-    })
-  })
-})