remove obsolete nav components

src/app/shared/blue_navbar/blue_navbar.component.html

-<div class="blue_navbar drop-shadow-md">
-  <div class="top">
-    <a routerLink="/" class='logo-container'>
-      <img src='assets/img/oser-logo.png' alt='Logo' class='logo'>
-    </a>
-    <div class="blue_nav-wide">
-    </div>
-    <i (click)="toggle()" class="blue_hamburger fa fa-bars fa-2x"></i>
-  </div>
-</div>

src/app/shared/blue_navbar/blue_navbar.component.scss

-@import '~sass/media-queries';
-@import '~sass/variables';
-$margin-page: 2em;
-$col-padding: 10px;
-
-.blue_navbar {
-  position: static;
-  top: 0;
-  padding: 0 $margin-page;
-  margin: 0;
-  background: white;
-  z-index: 10;
-  display: flex;
-  flex-flow: column nowrap;
-}
-
-.top {
-  display: flex;
-  flex-direction: row;
-  align-items: center;
-  width: 100%;
-}
-
-a.logo-container {
-  display: block;
-  padding: $col-padding;
-  margin: 0;
-  margin-right: auto;
-}
-
-img.logo {
-  width: 100%;
-  max-width: 15em;
-  padding-top: .3em;
-  padding-bottom: .2em;
-}
-
-i.blue_hamburger {
-  cursor: pointer;
-  margin-left: auto;
-  margin-right: 0;
-  color: $color-dark-blue;
-  display: block;
-  @include media-md {
-    display: none;
-  }
-}
-
-.blue_nav-wide {
-  height: 100%;
-  margin-top: auto;
-  display: none;
-  flex: 1;
-  @include media-md {
-    display: flex;
-  }
-}
-.blue_nav-narrow {
-  display: block;
-  @include media-md() {
-    display: none;
-  }
-}

src/app/shared/blue_navbar/blue_navbar.component.ts

-import { Component, Input } from '@angular/core';
-import { AuthService } from 'app/core';
-import { Link } from '../nav.model';
-
-@Component({
-  selector: 'blue_navbar.component',
-  templateUrl: './blue_navbar.component.html',
-  styleUrls: ['./blue_navbar.component.scss']
-})
-export class BlueNavbarComponent {
-
-  visible = false;
-  @Input() links: Link[] = [];
-
-  constructor() { }
-
-  toggle(): void {
-    this.visible = !this.visible;
-  }
-
-}

src/app/shared/index.ts

@@ -3,4 +3,3 @@ export * from './navbar/navbar.component';
 export * from './footer/footer.component';
 export * from './ui-gallery/ui-gallery.component';
 export * from './nav.model';
-export * from './blue_navbar/blue_navbar.component';

src/app/shared/nav-group-vertical/nav-group-vertical.component.html

-<ul>
-  <li *ngFor="let link of links">
-    <app-nav-item [link]="link"></app-nav-item>
-  </li>
-</ul>

src/app/shared/nav-group-vertical/nav-group-vertical.component.scss

-ul {
-  list-style-type: none;
-  margin: 0;
-  padding: 0;
-  display: flex;
-  flex-direction: column;
-
-  li {
-    text-align: center;
-  }
-}

src/app/shared/nav-group-vertical/nav-group-vertical.component.ts

-import { Component, Input } from '@angular/core';
-import { Link } from '../nav.model';
-
-@Component({
-  selector: 'app-nav-group-vertical',
-  templateUrl: './nav-group-vertical.component.html',
-  styleUrls: ['./nav-group-vertical.component.scss']
-})
-export class NavGroupVerticalComponent {
-
-    @Input() links: Link[];
-
-}