How to disable "Run|Debug" line in vscode?

That Run | Debug is not built-in to vscode. It must be contributed by one of your extensions. These seem like likely culprits:

Dart: Show Main Code Lens

// Whether to show CodeLens actions in the editor for quick running/debugging scripts with main functions.

Dart: Show Test Code Lens

// Whether to show CodeLens actions in the editor for quick running/debugging tests.

In case people get here because there is a Debug or Run in their package.json, that is a separate issue and answer, see https://stackoverflow.com/questions/62358131/how-to-disable-debug-from-showing-in-package-json/62368407?r=SearchResults&s=1|57.9327#62368407

Just disable Enable Code Lens in jest plugin.

It's very annoying! When you write test code, small Debug text shows on top of a test (above it method) when it fails.

During programming, it constantly shows and hides, causing lines of code move up and down a bit. It's terrible experience. Fortunately, easy to disable.

After disabling it, we still have test status feedback:

For Java Extension paste this in your settings.json file

"java.debug.settings.enableRunDebugCodeLens": false

you just open your vs Code Setting -> Text Editor -> Code Lean [Check mark this Box]