How to completely remove bundle id in iOS development?

I'm not sure what your exact scenario is, you didn't provide enough information to know that. However, I came across a similar problem which was as follows:

Some time ago I registered a new Apple Account and created an iOS app with it. I did not pay for that, i.e. the app could only ever be used for 7 days. I've never submitted that app to the app store. Nonetheless, the bundle identifier of the app was associated with that particular account.

Some time later I registered another Apple Account. This time with a payed subscription. When I attempted to sign the app I created with the first account, Xcode complained as follows:

Failed to register bundle identifier. The app identifier "xy" cannot be registered to your development team because it is not available.

and

No profiles for 'xy' were found. Xcode couldn't file any iOS App Development provisioning profiles matching 'xy'.

It seems that the bundle identifier gets strictly associated with the provisioning profile of the first account. The way to solve this is to delete that particular provisioning profile. You can do so by going to the following folder and deleting the corresponding file in that folder:

~/Library/MobileDevice/Provisioning Profiles/

The bundle id can't be reused as exact. For example com.abc.xxx can be used only once. If you had created this app Id from one account, you can't create the same app Id from the other account. However, you will still be able to create a new one as com.abc.xxx1 like or so. There should be atleast 1 character difference in the app Id's

IF YOU WANT TO DELETE AN APP ID THEN BELOW ARE THE STEPS:

  1. Open developer.apple.com and enter using your credentials.
  2. Click on App IDs.
  3. Now click on the App ID you want to Delete.
  4. Click on Edit at the bottom of the App ID information.
  5. Now here at the bottom of the page you can find Delete button to delete an App ID.