[US TRTL-640] Remove background images

ui/ui-frontend-common/src/sass/_layout.scss

@@ -26,7 +26,6 @@ $footer-height: 100px !default;
 
 /**** DEPRECATED : REMOVE AT THE END OF THE REDESIGN **/
 .vitamui-header {
-    background-image: url('/assets/background.jpg');
     background-size: cover;
     background-position: center;
     padding-top: 1rem;
@@ -63,15 +62,6 @@ $footer-height: 100px !default;
     }
 }
 
-
-.bg-fingerprint {
-    z-index: -2;
-    position: fixed;
-    bottom: -70px;
-    right: -20px;
-    width: 700px;
-}
-
 .vitamui-header > .vitamui-container > h2 {
     // TODO Rename this variable in angular-commons
     @include login-title;

ui/ui-frontend-common/src/sass/_modal.scss

 .vitamui-modal-backdrop {
-    background: url('/assets/background.jpg');
     background-size: cover;
 }
 

ui/ui-frontend-common/src/sass/material/_dialog.scss

@@ -16,8 +16,3 @@
         }
     }
 }
-
-.error-dialog-backdrop {
-    background: url('/assets/background.jpg');
-    background-size: cover;
-}

ui/ui-frontend/projects/referential/src/app/context/context.component.html

@@ -5,7 +5,6 @@
   </mat-sidenav>
 
   <mat-sidenav-content>
-
     <div class="vitamui-header">
       <div class="vitamui-container">
         <vitamui-common-navbar [appId]="appId" [hideTenantMenu]="true" [hideCustomerMenu]="true"></vitamui-common-navbar>

ui/ui-frontend/projects/referential/src/app/security-profile/security-profile.component.html

@@ -5,7 +5,6 @@
   </mat-sidenav>
 
   <mat-sidenav-content>
-
     <div class="vitamui-header">
       <div class="vitamui-container">
         <vitamui-common-navbar [appId]="appId" [hideTenantMenu]="true" [hideCustomerMenu]="true"></vitamui-common-navbar>