Allow deletion of custom networks

[cliffhall]

What problem are you trying to solve?

• Trying to remove an incorrectly specified custom network from MetaMask.

Describe the solution you'd like

1. Add an 'x' button to the right of each custom network name in the networks dropdown.
2. Clicking the button should raise a confirmation dialog with 'Yes' and 'Cancel' buttons, saying "Are you sure you want to delete this network?".
3. Clicking 'Yes' should delete the custom network.

Additional context

• In the screenshot below, I had inadvertently added the https://127.0.0.1:7545 address which did not work, then added http://127.0.0.1:7545 which did. Now I'd like to remove the one that did not work.
  

• Also, the following advice from issue Deleting accounts and networks #3507 does not work:
  Deleting accounts and networks #3507 (comment)

[hackmod]

Please see UI suggestion #5246 and the PR #5267

[bdresser]

hey @cliffhall - as @hackmod mentions, this will be handled in #5267

[zemse]

Is this implemented? I'm using Metamask 7.7.3 but can't find the option

[ghost]

Has this option been removed? It's not available in 7.7.9 anymore. I have to reinstall Metamask to delete the network.

[davidcallanan]

This is ridiculous. I'm trying to test my apps ability to automatically add a chain to metamask. For testing purposes, I must delete the network from metamask so I can test this.

It would be great if this is fixed!

EDIT Turns out you can't delete the network if you are currently connected to it. If you connect to a different network then you can delete the other. Hopefully this helps anyone with similar issues.