Remove engine in package.json

[chilijung]

Why

I don't think the engine setting is right in package.json

It cause built fail in now

> warning @canner/[email protected]: The engine "vscode" appears to be invalid.
> info [email protected]: The platform "linux" is incompatible with this module.
> info "[email protected]" is an optional dependency and failed compatibility check. Excluding it from installation.
> warning [email protected]: The engine "vscode" appears to be invalid.
> [4/5] Linking dependencies..

FYI: https://docs.npmjs.com/files/package.json#engines

[fabien0102]

Logically it's just a warning, but I'm agree that this vscode as engine is weird 😄

[chilijung]

In now it will break the build process.

[TejasQ]

Thank you, @chilijung!