apply licence to MongoDB Inc.

[MaBeuLux88]

According to the previous version of this file, this is how to apply Apache 2.0 to a project:

APPENDIX: How to apply the Apache License to your work.

  To apply the Apache License to your work, attach the following	
  boilerplate notice, with the fields enclosed by brackets "[]"	
  replaced with your own identifying information. (Don't include	
  the brackets!)  The text should be enclosed in the appropriate	
  comment syntax for the file format. We also recommend that a	
  file or class name and description of purpose be included on the	
  same "printed page" as the copyright notice for easier	
  identification within third-party archives.

[lrlna]

@MaBeuLux88 did you mean to delete the whole of this LICENSE file, or just replace line 190 with Copyright 2020 MongoDB Inc.?

[MaBeuLux88]

I meant it. The licence is already in the link.

You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0

I guess it's also possible to keep it like this for example:
https://github.com/moby/moby/blob/master/LICENSE

Let me know which one you prefer, I can amend the PR.

[lrlna]

We prefer to keep this file in our repos. I think we just forgot to correct the Copyright placeholder.

[MaBeuLux88]

OK done.
I re-inserted the LICENCE text and removed the paragraph that explains how to apply the licence which isn't needed anymore.

To apply the Apache License to your work...