fix: TT-25 Empty selection in Activity drop-down(Time Clock page) (#686)

* fix: TT-25 Empty selection in Activity drop-down(Time Clock page)

* fix: TT-25 Delete the '-1' option from the html file

Author: lenshinoda

src/app/modules/time-clock/components/entry-fields/entry-fields.component.html

@@ -7,7 +7,6 @@
       formControlName="activity_id"
       [class.is-invalid]="activity_id.invalid && activity_id.touched"
       required>
-      <option value="-1"></option>
       <option *ngFor="let activity of activities" value="{{ activity.id }}">{{ activity.name }}</option>
     </select>
   </div>