refactor(icon, icon-set): cleanup

Author: xidedix

Diff for: projects/coreui-icons-angular/src/lib/icon-set/icon-set.module.ts

@@ -3,10 +3,7 @@ import { ModuleWithProviders, NgModule, Optional, SkipSelf } from '@angular/core
 import { IconSetService } from './icon-set.service';
 
 @NgModule({
-  imports: [],
-  providers: [
-    IconSetService
-  ]
+  providers: [IconSetService]
 })
 export class IconSetModule {
   constructor(@Optional() @SkipSelf() parentModule?: IconSetModule) {

Diff for: projects/coreui-icons-angular/src/lib/icon/icon.module.ts

@@ -1,13 +1,9 @@
 import { NgModule } from '@angular/core';
-
-import { HtmlAttributesDirective } from '../shared/html-attr.directive';
 import { IconComponent } from './icon.component';
 import { IconDirective } from './icon.directive';
 
 @NgModule({
-  declarations: [],
   imports: [
-    HtmlAttributesDirective,
     IconComponent,
     IconDirective
   ],