chore(animations): ng-package.json can be empty

Author: kdinev

projects/igniteui-angular/animations/index.ts

@@ -1 +1 @@
-export * from './src/public-api';
+export * from './src/public_api';

projects/igniteui-angular/animations/ng-package.json

@@ -1,5 +1,2 @@
 {
-  "lib": {
-    "entryFile": "src/public-api.ts"
-  }
 }