message: fix: remove unnecessary FormsModule.
diff: import { NgModule, ModuleWithProviders } from '@angular/core';
  -import { FormsModule } from '@angular/forms';
  import { CommonModule } from '@angular/common';
  import { NgSelectComponent } from './ng-select.component';
  @@ -16,7 +15,6 @@ import { NgSelectConfig } from './ng-select.types';
  SpinnerComponent
  ],
  imports: [
  - FormsModule,
  CommonModule,
  VirtualScrollModule
  ],
  