[cpp] remove '@theia/cpp' extension

[vince-fugnitto]

What it does

Fixes #6340

The @theia/cpp extension is planned to move to theia-cpp-extensions repository.
The pull request has already been started: eclipse-theia/theia-cpp-extensions#69

This PR:

• removes the @theia/cpp extension.
• removes references to the @theia/cpp extension.

How to test

• verify that CI passes successfully
• verify that the application correctly starts

Review checklist

• as an author, I have thoroughly tested my changes and carefully followed the review guidelines
• @theia/cpp is merged into theia-cpp-extensions

Reminder for reviewers

• as a reviewer, I agree to behave in accordance with the review guidelines

Signed-off-by: vince-fugnitto vincent.fugnitto@ericsson.com

[lmcbout]

The link provided #69 is not pointing to eclipse-theia/theia-cpp-extensions#69

Result from testing:
yarn test:

lerna success run Ran npm script 'test' in packages:
lerna success - @theia/example-browser
Done in 392.57s.

Rebase: May need a manual intervention

Merge: conflict with "packages/cpp/src/browser/cpp-task-provider.ts"
Version master of packages/cpp/src/browser/cpp-task-provider.ts left in tree.
Automatic merge failed; fix conflicts and then commit the result.

Even if approved, should only merge to master branch after eclipse-theia/theia-cpp-extensions#69 has been merged.

[vince-fugnitto]

@lmcbout I resolved the merge conflict :)
I don't believe there is an explicit need to wait for the theia-cpp-extensions pr to be merged first however.

[lmcbout]

@vince-fugnitto The wait for the other PR to be merged is to let the end-user have the alternative ready to use before we cut the CPP support, Just to be nice to all users.

[vince-fugnitto]

@vince-fugnitto The wait for the other PR to be merged is to let the end-user have the alternative ready to use before we cut the CPP support, Just to be nice to all users.

I just need someone to approve the PR from theia-cpp-extensions then :)

[akosyakov]

Any plans to merge it? Any removed extension makes our build faster.

[vince-fugnitto]

Any plans to merge it? Any removed extension makes our build faster.

Yes, just waiting for eclipse-theia/theia-cpp-extensions#69.
I believe internally we are using eclipse-theia/theia-cpp-extensions#69 this week for a demo so it will likely be merged the beginning of next week. @marcdumais-work

[vince-fugnitto]

Merging! :)