refactor: value accessors' cleanup (NativeScript#1451)

Author: manoldonev

nativescript-angular/forms/value-accessors/checked-value-accessor.ts

@@ -24,7 +24,6 @@ const CHECKED_VALUE_ACCESSOR = {
         "switch[ngModel],switch[formControlName],switch[formControl]",
     providers: [CHECKED_VALUE_ACCESSOR],
     host: {
-        "(touch)": "onTouched()",
         "(checkedChange)": "onChange($event.value)",
     },
 })

nativescript-angular/forms/value-accessors/time-value-accessor.ts

@@ -26,7 +26,6 @@ const TIME_VALUE_ACCESSOR = {
         "time-picker[ngModel],time-picker[formControlName],time-picker[formControl]",
     providers: [TIME_VALUE_ACCESSOR],
     host: {
-        "(touch)": "onTouched()",
         "(timeChange)": "onChange($event.value)",
     },
 })