Dependencies Cleanup

[jolanglinais]

Need to take a hard look at all our dependencies.

This impacts security, development workflow (slow builds), and page load times.

[Cronus1007]

@irmerk Shall I work upon this issue.

[Cronus1007]

@irmerk I have checked the package=markdown-editor and the dependencies that didn't show up are rimraf and npm -run-all.These were stale dependencies and few dependencies like is-url are also missing.

[Cronus1007]

@irmerk So shall I start working upon this issue.

[jolanglinais]

Could you please outline what you plan to change here before opening a PR?

[Cronus1007]

@irmerk Here the things that I noticed before opening a PR is that I checked each file of the package twice and saw that the package doesn't depend upon the two dependencies like rimraf and npm-run-all.These have their usecase in storybook package only and it is safe to remove these dependencies from the package.