[NFC] Remove accidentally commited ccache folder

[jsji]

Folder was added accidentally in conflict resolution. Added the folder to .gitignore as well.

[bader]

Why do you need this? Can you put ccache files/directory to one of existing directories?
For example, this file already has a rule for:

• .cache
• /build*

[jsji]

Sure, I can change other scripts to move the ccache, but I think it would be easier and safer to add it here. This won't cause additional issue given we have other customizations like !buidbot above.

[bader]

If we need to add a new rule for local ccache directory, I suggest following standard naming scheme:

Suggested change

	/ccache-sycl
	/.ccache/ # e.g. .ccache/sycl/, .ccache/main/, etc.

[dm-vodopyanov]

@jsji, hi, do you have a plan to address the feedback from Alexey above and merge the fix? ccache-sycl is still in the repo.

[bader]

@jsji, hi, do you have a plan to address the feedback from Alexey above and merge the fix? ccache-sycl is still in the repo.

@dm-vodopyanov, @jsji is OOO this week. I'm okay to address the comment later, but someone need to fix CI before merging this PR.