[ADF-2531] Fixes for production mode (#3121)

* fix dialog module

* fix social component providers

* content metadata module fixes

* remove empty provider sections

lib/content-services/social/like.component.ts

@@ -22,7 +22,6 @@ import { RatingService } from './services/rating.service';
     selector: 'adf-like',
     styleUrls: ['./like.component.scss'],
     templateUrl: './like.component.html',
-    providers: [RatingService],
     encapsulation: ViewEncapsulation.None
 })
 export class LikeComponent implements OnChanges {

lib/content-services/social/rating.component.ts

@@ -22,7 +22,6 @@ import { RatingService } from './services/rating.service';
     selector: 'adf-rating',
     styleUrls: ['./rating.component.scss'],
     templateUrl: './rating.component.html',
-    providers: [RatingService],
     encapsulation: ViewEncapsulation.None
 })
 export class RatingComponent implements OnChanges {

lib/content-services/social/social.module.ts

@@ -19,7 +19,6 @@ import { CommonModule } from '@angular/common';
 import { NgModule } from '@angular/core';
 import { MaterialModule } from '../material.module';
 
-import { RatingService } from './services/rating.service';
 import { LikeComponent } from './like.component';
 import { RatingComponent } from './rating.component';
 
@@ -35,9 +34,6 @@ import { RatingComponent } from './rating.component';
     declarations: [
         RatingComponent,
         LikeComponent
-    ],
-    providers: [
-        RatingService
     ]
 })
 export class SocialModule {}