CLN: Remove long and integer_types from pandas.compat

[jschendel]

• xref CLN: remove PY2 #25725
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff

Another incremental step in removing Python 2. Doesn't look like integer_types was actually used anywhere. Otherwise mostly long --> int, or just removing long as the argument was already an int in Python 3.

[jreback]

lgtm. merge on green.

[codecov]

Codecov Report

Merging #25862 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #25862      +/-   ##
==========================================
+ Coverage   91.47%   91.47%   +<.01%     
==========================================
  Files         173      173              
  Lines       52872    52868       -4     
==========================================
- Hits        48364    48362       -2     
+ Misses       4508     4506       -2

Flag	Coverage Δ
#multiple	90.04% <100%> (ø)	⬆️
#single	41.82% <33.33%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
pandas/compat/__init__.py	60% <ø> (+0.17%)	⬆️
pandas/core/internals/blocks.py	94.08% <ø> (ø)	⬆️
pandas/io/json/json.py	93.22% <100%> (ø)	⬆️
pandas/core/sorting.py	98.29% <100%> (ø)	⬆️

---

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[codecov]

Codecov Report

Merging #25862 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #25862      +/-   ##
==========================================
+ Coverage   91.47%   91.47%   +<.01%     
==========================================
  Files         173      173              
  Lines       52872    52868       -4     
==========================================
- Hits        48364    48362       -2     
+ Misses       4508     4506       -2

Flag	Coverage Δ
#multiple	90.04% <100%> (ø)	⬆️
#single	41.82% <33.33%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
pandas/compat/__init__.py	60% <ø> (+0.17%)	⬆️
pandas/core/internals/blocks.py	94.08% <ø> (ø)	⬆️
pandas/io/json/json.py	93.22% <100%> (ø)	⬆️
pandas/core/sorting.py	98.29% <100%> (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 2618b21...18422e3. Read the comment docs.