log correct version

Summary:
Instead of reading version number for logging from `package.json` it is now fetched via electron. We usually don't update our version number in package.json and therefore all logs showed the same version number. the version number from `app.getVersion()` is set during the build process and reflects the actual version number that is used.
Removes unused `<Version />` component.

Reviewed By: jknoxville

Differential Revision: D9495745

fbshipit-source-id: 6999ea23a1e4f90d6591b3695e01a803a5f3ff85

src/chrome/Version.js

@@ -1,92 +0,0 @@
-/**
- * Copyright 2018-present Facebook.
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- * @format
- */
-
-import {Component, FlexRow, colors, LoadingIndicator, styled} from 'sonar';
-import {version} from '../../package.json';
-import {remote} from 'electron';
-import * as path from 'path';
-import {userInfo} from 'os';
-import * as fs from 'fs';
-
-const VERSION_URL =
-  'https://interngraph.intern.facebook.com/sonar/version?app=543626909362475&token=AeNRaexWgPooanyxG0';
-
-type VersionState = {
-  status: 'unknown' | 'outdated' | 'latest' | 'updated' | 'errored',
-};
-
-export default class Version extends Component<{}, VersionState> {
-  state = {
-    status: 'unknown',
-  };
-
-  static Container = styled(FlexRow)({
-    alignItems: 'center',
-    marginRight: 7,
-    marginLeft: 7,
-    marginTop: -1,
-    color: colors.light50,
-  });
-
-  static UpdatedContainer = styled(FlexRow)({
-    backgroundColor: colors.blackAlpha10,
-    borderRadius: '999em',
-    padding: '2px 6px',
-    marginLeft: 7,
-    color: colors.light80,
-    '&:hover': {
-      backgroundColor: colors.blackAlpha15,
-    },
-  });
-
-  componentDidMount() {
-    this.watchUpdates();
-
-    this.checkVersion().catch(() => {
-      this.setState({status: 'errored'});
-    });
-  }
-
-  async watchUpdates() {
-    fs.watch(path.join(userInfo().homedir, '.sonar-desktop'), () =>
-      this.setState({status: 'updated'}),
-    );
-  }
-
-  async checkVersion() {
-    const req = await fetch(VERSION_URL);
-    const json = await req.json();
-    this.setState({status: json.version === version ? 'latest' : 'outdated'});
-  }
-
-  onClick = () => {
-    // mark the app to relaunch once killed
-    remote.app.relaunch();
-    // close the current window
-    remote.getCurrentWindow().destroy();
-  };
-
-  render() {
-    const {status} = this.state;
-    return (
-      <Version.Container>
-        {version}
-        {status === 'outdated' && [
-          <Version.Container key="loading">
-            <LoadingIndicator size={16} />
-          </Version.Container>,
-          'Updating...',
-        ]}
-        {status === 'updated' && (
-          <Version.UpdatedContainer onClick={this.onClick}>
-            Restart Sonar
-          </Version.UpdatedContainer>
-        )}
-      </Version.Container>
-    );
-  }
-}