refactor(ivy): Add newer, smaller NgOnChangesFeature (#28187)

PR Close #28187

packages/core/src/change_detection/change_detection_util.ts

@@ -64,20 +64,6 @@ export class WrappedValue {
   static isWrapped(value: any): value is WrappedValue { return value instanceof WrappedValue; }
 }
 
-/**
- * Represents a basic change from a previous to a new value.
- *
- * @publicApi
- */
-export class SimpleChange {
-  constructor(public previousValue: any, public currentValue: any, public firstChange: boolean) {}
-
-  /**
-   * Check whether the new value is the first value assigned.
-   */
-  isFirstChange(): boolean { return this.firstChange; }
-}
-
 export function isListLikeIterable(obj: any): boolean {
   if (!isJsObject(obj)) return false;
   return Array.isArray(obj) ||