Removing an app from the Google Play Store is very simple. Follow the steps below, and your app will no longer be visible in the Google Play Store. This prevents new users from downloading your app. It's not possible to fully delete an app from your Google Developer Account.
1. Log into the Google Developer Console.
2. Under All Applications, select the app you wish to remove from the Play Store.
3. From the left-side menu, click the Store presence tab, follow by Store Listing.
4. Next, click the Menu icon (the vertical three dots) at the top right corner and select Unpublished app, as shown below.