Incorrectly created or superfluous APN data (access points) can be quickly and easily deleted in the menu; the standard APN cannot be removed from the LG device.

Android 9 | LG UX 9.0
Step 1:  Open the  Settings
Step 2:  Tap on  Mobile networks
Step 3:  Tap on  Access Point Names
Step 4:  Tap on desired  APN
Step 5:  Open the  Menu
Step 6:  Tap on  Delete APN
Step 7:  Confirm with  Delete
  1. Open the Settings
  2. Tap on Mobile networks
  3. Tap on Access Point Names
  4. Tap on desired APN
  5. Open the Menu
  6. Tap on Delete APN
  7. Confirm with Delete

LG Instructions