message: remove cluster hostname from sidebar
diff: import * as React from 'react';
  import { connect } from 'react-redux';
  -import { Title, Text, TextVariants } from '@patternfly/react-core';
  +import { Title } from '@patternfly/react-core';
  import { getActivePerspective } from '../../reducers/ui';
  import * as plugins from '../../plugins';
  import { RootState } from '../../redux';
  @@ -14,23 +14,11 @@ export const NavHeader: React.FC<StateProps> = ({ activePerspective }) => {
  .getPerspectives()
  .find((p) => p.properties.id === activePerspective).properties;
  - let clusterName: string;
  - const server = window.SERVER_FLAGS.kubeAPIServerURL;
  - if (server) {
  - // add zero-width space after each `.` to improve readability when breaking up the string for wrapping
  - clusterName = new URL(server).host.replace(/\./g, `.${String.fromCharCode(8203)}`);
  - }
  -
  return (
  <div className="oc-nav-header">
  <Title className="oc-nav-header__title" size="md">
  {icon} {name}
  </Title>
  - {clusterName && (
  - <Text className="oc-nav-header__description co-break-word" component={TextVariants.small}>
  - Cluster: {clusterName}
  - </Text>
  - )}
  </div>
  );
  };
  