Removed unused default submission section

src/app/submission/sections/default/section-default.component.html

-<span>Lorem ipsum dolor sit amet, consectetur adipisci elit, sed eiusmod tempor incidunt ut labore et dolore
-  magna aliqua. Ut enim ad minim veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut
-  aliquid ex ea commodi consequatur. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat
-  nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt
-  mollit anim id est laborum.
-</span>

src/app/submission/sections/default/section-default.component.ts

-import { Component, Inject } from '@angular/core';
-import { SectionModelComponent } from '../models/section.model';
-import { JsonPatchOperationsBuilder } from '../../../core/json-patch/builder/json-patch-operations-builder';
-import { SectionDataObject } from '../models/section-data.model';
-
-@Component({
-  selector: 'ds-submission-section-default',
-  styleUrls: ['./section-default.component.scss'],
-  templateUrl: './section-default.component.html',
-})
-export class DefaultSectionComponent extends SectionModelComponent {
-
-  protected operationsBuilder: JsonPatchOperationsBuilder;
-
-  constructor(@Inject('collectionIdProvider') public injectedCollectionId: string,
-              @Inject('sectionDataProvider') public injectedSectionData: SectionDataObject,
-              @Inject('submissionIdProvider') public injectedSubmissionId: string) {
-    super(injectedCollectionId, injectedSectionData, injectedSubmissionId);
-  }
-
-}

src/app/submission/submission.module.ts

@@ -6,7 +6,6 @@ import { SharedModule } from '../shared/shared.module';
 import { FormSectionComponent } from './sections/form/section-form.component';
 import { SectionsDirective } from './sections/sections.directive';
 import { SectionsService } from './sections/sections.service';
-import { DefaultSectionComponent } from './sections/default/section-default.component';
 import { SubmissionFormCollectionComponent } from './form/collection/submission-form-collection.component';
 import { SubmissionFormFooterComponent } from './form/footer/submission-form-footer.component';
 import { SubmissionFormComponent } from './form/submission-form.component';
@@ -45,7 +44,6 @@ import { SubmissionSubmitComponent } from './submit/submission-submit.component'
   ],
   declarations: [
     AccessConditionsComponent,
-    DefaultSectionComponent,
     UploadSectionComponent,
     FormSectionComponent,
     LicenseSectionComponent,
@@ -66,7 +64,6 @@ import { SubmissionSubmitComponent } from './submit/submission-submit.component'
     DuplicateMatchComponent,
   ],
   entryComponents: [
-    DefaultSectionComponent,
     UploadSectionComponent,
     FormSectionComponent,
     LicenseSectionComponent,