fix(igx-ts): remove unused import

Author: Hristo313

packages/igx-templates/igx-ts-legacy/linear-gauge/default/files/src/app/__path__/__filePrefix__.spec.ts

@@ -1,7 +1,6 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { IgxLinearGaugeModule } from 'igniteui-angular-gauges';
 import { <%=ClassName%> } from './<%=filePrefix%>';
-import * as gauges from 'igniteui-angular-gauges';
 
 describe('<%=ClassName%>', () => {
   let component: <%=ClassName%>;