'Remove step' feature for local workspaces

[pranjali97]

No description provided.

[AkshitaB]

I think the function in the workspace should be an abstract method: "NotImplementedError" , and this function is specifically for "local_workspace".

The remote workspaces that inherit from local workspace can implement the remove method as follows:

def remove_step():
    super().remove_step()
    <remove specific step removal>

Also, we should add tests.

The style issues can be fixed by running isort, black, mypy, etc. as specified in CONTRIBUTING.md

[AkshitaB]

Looks good overall. Added some minor suggestions. I can't reproduce the type check error locally, let's see the output of the checks after rerunning with the committed suggestions.