fix: remove properties that are no longer required

Signed-off-by: Akshat Patel <[email protected]>

Author: Akshat55

src/treeview/ng-package.json

@@ -1,7 +1,5 @@
 {
-	"ngPackage": {
-		"lib": {
-			"entryFile": "index.ts"
-		}
+	"lib": {
+		"entryFile": "index.ts"
 	}
 }