Revert "fix #14484 Calendar: the initial load now respect the dateFor…

…mat"

src/app/components/calendar/calendar.ts

@@ -3016,9 +3016,7 @@ export class Calendar implements OnInit, OnDestroy, ControlValueAccessor {
                 }
             }
         }
-        if (this.dataType === 'string') {
-            this.updateModel(value);
-        }
+
         this.updateInputfield();
         this.updateUI();
         this.cd.markForCheck();