Remove stats.json

[lheckemann]

Remove stats.json which shouldn't be there as far as I can tell.

Seems to be some sort of IDE metadata erroneously introduced in
7ff626c (#5934)

cc @BYK who added this

[buildsize]

File name	Previous Size	New Size	Change
yarn-[version].noarch.rpm	1.1 MB	1.09 MB	-13.94 KB (1%)
yarn-[version].js	4.46 MB	4.27 MB	-197.74 KB (4%)
yarn-legacy-[version].js	4.65 MB	4.44 MB	-216.68 KB (5%)
yarn-v[version].tar.gz	1.12 MB	1.1 MB	-19.22 KB (2%)
yarn_[version]all.deb	813.67 KB	804.48 KB	-9.19 KB (1%)

[BYK]

Ah, good catch!

[lheckemann]

Would this auto-merge if the test hadn't failed? The failure is unrelated to my change AFAICT.

[BYK]

It won't auto merge and I agree it seems completely unrelated. Restarted the job to make sure tho.

[BYK]

I think that item is broken altogether on around this specific commit:

node@10 is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.

If you need to have node@10 first in your PATH run:
  echo 'export PATH="/usr/local/opt/node@10/bin:$PATH"' >> ~/.bash_profile

For compilers to find node@10 you may need to set:
  export LDFLAGS="-L/usr/local/opt/node@10/lib"
  export CPPFLAGS="-I/usr/local/opt/node@10/include"

Gonna merge myself.