Revert "Show flash error if can't connect in data explorer."

This reverts commit b269e4a34d0bda99ac27d6de5218b739c43cefb4.

ui/src/chronograf/api/index.js

@@ -1,5 +1,4 @@
 import AJAX from 'utils/ajax';
-import {proxy} from 'utils/queryUrlGenerator';
 
 export function saveExplorer({name, panels, queryConfigs, explorerID}) {
   return AJAX({
@@ -14,11 +13,3 @@ export function saveExplorer({name, panels, queryConfigs, explorerID}) {
     }),
   });
 }
-
-export function verifySource(proxyLink) {
-  return proxy({
-    source: proxyLink,
-    query: "select * from cpu limit 1",
-    db: 'telegraf',
-  });
-}

ui/src/chronograf/containers/App.js

@@ -3,7 +3,6 @@ import {connect} from 'react-redux';
 import {withRouter} from 'react-router';
 import {fetchExplorers} from '../actions/view';
 import DataExplorer from './DataExplorer';
-import {verifySource} from '../api';
 
 const App = React.createClass({
   propTypes: {
@@ -20,11 +19,9 @@ const App = React.createClass({
     params: PropTypes.shape({
       base64ExplorerID: PropTypes.string,
     }).isRequired,
-    addFlashMessage: PropTypes.func,
   },
 
   componentDidMount() {
-    verifySource(this.props.source.links.proxy).then(() => {
     const {base64ExplorerID} = this.props.params;
     this.props.fetchExplorers({
       source: this.props.source,
@@ -32,12 +29,6 @@ const App = React.createClass({
       explorerID: base64ExplorerID ? this.decodeID(base64ExplorerID) : null,
       push: this.props.router.push,
     });
-    }).catch(() => {
-      this.props.addFlashMessage({
-        type: 'error',
-        text: `Connection error. Check that your server is running.`,
-      });
-    });
   },
 
   render() {