Deleted old kbn-top-nav directive (elastic#43168)

* Deleted old kbn-top-nav directive.
Can be merged only when monitoring replace their last usage.

* fix texts

* Remove CSS import
Removed fix to config in monitoring (fix is on elastic#43187)

* rename monitoring directive

src/legacy/core_plugins/console/public/index.html

@@ -1,7 +1,7 @@
-<kbn-top-nav-v2 
+<kbn-top-nav 
   app-name="'console'"
   config="topNavMenu" 
-></kbn-top-nav-v2>
+></kbn-top-nav>
 <kbn-dev-tools-app data-test-subj="console">
   <sense-history ng-show="showHistory" is-shown="showHistory" close="closeHistory()" history-dirty="lastRequestTimestamp"></sense-history>
   <div class="conApp">

src/legacy/core_plugins/data/public/search/search_bar/components/search_bar.tsx

@@ -185,7 +185,7 @@ class SearchBarUI extends Component<SearchBarProps, State> {
   }
 
   public render() {
-    // This is needed, as kbn-top-nav-v2 might render before npSetup.core.uiSettings is set.
+    // This is needed, as kbn-top-nav might render before npSetup.core.uiSettings is set.
     // This won't be needed when it's loaded exclusively with React.
     if (!this.props.uiSettings) {
       return null;

src/legacy/core_plugins/kibana/public/dashboard/dashboard_app.html

@@ -3,7 +3,7 @@
   ng-class="{'dshAppContainer--withMargins': model.useMargins}"
 >
   <!-- Local nav. -->
-  <kbn-top-nav-v2 
+  <kbn-top-nav 
     ng-show="chrome.getVisible()"
     app-name="'dashboard'"
     config="topNavMenu" 
@@ -23,7 +23,7 @@
     is-refresh-paused="model.refreshInterval.pause"
     refresh-interval="model.refreshInterval.value"
     on-refresh-change="onRefreshChange">
-  </kbn-top-nav-v2>
+  </kbn-top-nav>
 
   <!--
   The top nav is hidden in embed mode but the filter bar must still be present so

src/legacy/core_plugins/kibana/public/discover/index.html

@@ -1,7 +1,7 @@
 <discover-app class="app-container">
   <!-- Local nav. -->
 
-  <kbn-top-nav-v2
+  <kbn-top-nav
     app-name="'discover'"
     config="topNavMenu"
     show-search-bar="true"
@@ -18,7 +18,7 @@
     refresh-interval="refreshInterval.value"
     on-refresh-change="onRefreshChange"
   >
-  </kbn-top-nav-v2>
+  </kbn-top-nav>
 
   <main class="container-fluid">
     <div class="row">

src/legacy/core_plugins/kibana/public/visualize/editor/editor.html

@@ -32,7 +32,7 @@
     All visualizaions also have least a timepicker \ autorefresh component, which is why
     show-query-bar is set to "true".
   -->
-  <kbn-top-nav-v2 
+  <kbn-top-nav 
     app-name="'visualize'"
     config="topNavMenu"
     show-search-bar="true"
@@ -53,7 +53,7 @@
     refresh-interval="refreshInterval.value"
     on-refresh-change="onRefreshChange"
   >
-  </kbn-top-nav-v2>
+  </kbn-top-nav>
 
   <!--
     The top nav is hidden in embed mode but the filter bar must still be present so

src/legacy/core_plugins/timelion/public/index.html

@@ -11,7 +11,7 @@
     </span>
   </span>
   <!-- Local nav. -->
-  <kbn-top-nav-v2 
+  <kbn-top-nav 
     app-name="'timelion'"
     config="topNavMenu"
     show-search-bar="true"
@@ -24,7 +24,7 @@
     refresh-interval="model.refreshInterval.value"
     on-refresh-change="onRefreshChange"
     on-query-submit="onTimeUpdate">
-  </kbn-top-nav-v2>
+  </kbn-top-nav>
 
 
   <div class="timApp__menus">

src/legacy/ui/public/_index.scss

@@ -18,7 +18,6 @@
 @import './error_url_overflow/index';
 @import './exit_full_screen/index';
 @import './field_editor/index';
-@import './kbn_top_nav/index';
 @import './notify/index';
 @import './share/index';
 @import './style_compile/index';