Remove useless imports

Author: mpalourdio

src/test/components/spinner/spinner.outlet.component.spec.ts

@@ -8,9 +8,7 @@
  */
 
 import { HttpClientTestingModule } from '@angular/common/http/testing';
-import { Component } from '@angular/core';
-import { NgModule } from '@angular/core/src/metadata/ng_module';
-import { async, ComponentFixture, MetadataOverride, TestBed } from '@angular/core/testing';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
 import { BrowserDynamicTestingModule } from '@angular/platform-browser-dynamic/testing';
 import { SkThreeBounceComponent } from '../../../lib/components/sk-three-bounce/sk-three-bounce.component';