CLN: remove redundant mac wheel-build code

[robbuckley]

• closes #xxxx
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff
• whatsnew entry

this code is redundant for wheels built using https://github.com/MacPython/pandas-wheels, as the line https://github.com/matthew-brett/multibuild/blob/266d88fe1e474748cc8a3823dc3934bf55e76383/osx_utils.sh#L306 adds tags for 10.9 and 10.10.

Note: circleci fails as I forgot to turn it off on my fork, after it was turned off upstream

[jreback]

great!

[jreback]

were you able to build the wheels on a fork to test?

[robbuckley]

yes, although its getting difficult as the mac builds on the wheel builder are starting to hit the travis job timeout (50min)

[jreback]

great @robbuckley yeah I think the timeouts are separate (I pushed a fix to see)

[codecov]

Codecov Report

Merging #24644 into master will not change coverage.
The diff coverage is n/a.

@@ Coverage Diff @@ ## master #24644 +/- ## ======================================= Coverage 92.37% 92.37% ======================================= Files 166 166 Lines 52379 52379 ======================================= Hits 48386 48386 Misses 3993 3993

Flag	Coverage Δ
#multiple	90.8% <ø> (ø)	⬆️
#single	43.01% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #24644 into master will not change coverage.
The diff coverage is n/a.

@@ Coverage Diff @@ ## master #24644 +/- ## ======================================= Coverage 92.37% 92.37% ======================================= Files 166 166 Lines 52379 52379 ======================================= Hits 48386 48386 Misses 3993 3993

Flag	Coverage Δ
#multiple	90.8% <ø> (ø)	⬆️
#single	43.01% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d106e99...b390c4c. Read the comment docs.

[jreback]

thanks @robbuckley

[jreback]

btw I put in place pytest-xdist on the wheels, so finish in about 40 min now :>