Remove unused `hasHexData` prop (#10529)

This prop was never passed in, nor can I see any reason for it to exist
in the first place.

ui/app/pages/send/send-content/add-recipient/add-recipient.js

@@ -16,13 +16,11 @@ import {
   isValidDomainName,
 } from '../../../../helpers/utils/util';
 
-export function getToErrorObject(to, hasHexData = false, network) {
+export function getToErrorObject(to, network) {
   let toError = null;
   if (!to) {
-    if (!hasHexData) {
-      toError = REQUIRED_ERROR;
-    }
-  } else if (!isValidAddress(to) && !toError) {
+    toError = REQUIRED_ERROR;
+  } else if (!isValidAddress(to)) {
     toError = isEthNetwork(network)
       ? INVALID_RECIPIENT_ADDRESS_ERROR
       : INVALID_RECIPIENT_ADDRESS_NOT_ETH_NETWORK_ERROR;

ui/app/pages/send/send-content/add-recipient/tests/add-recipient-utils.test.js

@@ -30,12 +30,6 @@ describe('add-recipient utils', function () {
       });
     });
 
-    it('should return null if "to" is falsy and hexData is truthy', function () {
-      assert.deepStrictEqual(getToErrorObject(null, true), {
-        to: null,
-      });
-    });
-
     it('should return an invalid recipient error if "to" is truthy but invalid', function () {
       assert.deepStrictEqual(getToErrorObject('mockInvalidTo'), {
         to: INVALID_RECIPIENT_ADDRESS_ERROR,

ui/app/pages/send/send.component.js

@@ -31,7 +31,6 @@ export default class SendTransactionScreen extends Component {
     gasLimit: PropTypes.string,
     gasPrice: PropTypes.string,
     gasTotal: PropTypes.string,
-    hasHexData: PropTypes.bool,
     history: PropTypes.object,
     network: PropTypes.string,
     primaryCurrency: PropTypes.string,
@@ -234,7 +233,7 @@ export default class SendTransactionScreen extends Component {
   }
 
   validate(query) {
-    const { hasHexData, tokens, sendToken, network } = this.props;
+    const { tokens, sendToken, network } = this.props;
 
     const { internalSearch } = this.state;
 
@@ -243,7 +242,7 @@ export default class SendTransactionScreen extends Component {
       return;
     }
 
-    const toErrorObject = getToErrorObject(query, hasHexData, network);
+    const toErrorObject = getToErrorObject(query, network);
     const toWarningObject = getToWarningObject(query, tokens, sendToken);
 
     this.setState({