Removing type casting in Equals and NotEquals Primitives

[kmax12]

We were doing the casting to be careful, but there is no need because pandas will handle it internally

This should fix #500 and #496

[codecov]

Codecov Report

Merging #504 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #504      +/-   ##
==========================================
- Coverage   97.63%   97.63%   -0.01%     
==========================================
  Files         118      118              
  Lines       10201    10177      -24     
==========================================
- Hits         9960     9936      -24     
  Misses        241      241

Impacted Files	Coverage Δ
...aturetools/primitives/standard/binary_transform.py	100% <100%> (ø)	⬆️
featuretools/utils/wrangle.py	74.71% <0%> (-0.85%)	⬇️
featuretools/entityset/deserialize.py	98.94% <0%> (-0.11%)	⬇️
...etools/tests/entityset_tests/test_serialization.py	97.92% <0%> (-0.07%)	⬇️
featuretools/entityset/serialize.py	98.73% <0%> (-0.02%)	⬇️
featuretools/tests/entityset_tests/test_entity.py	100% <0%> (ø)	⬆️

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[kmax12]

This is appears to be the problem here: https://stackoverflow.com/questions/57601595/how-to-write-seed-features-that-work-with-cutoff-time?noredirect=1#comment101752737_57601595

[tlyleung]

This PR fixes the problem! The ValueError: Cannot convert non-finite values (NA or inf) to integer error no longer occurs and the features are built without a hitch.

[CLAassistant]

All committers have signed the CLA.

[apemann]

Can this fix make it into the next release please? It looks like it's almost done.

[codecov-io]

Codecov Report

Merging #504 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #504   +/-   ##
=======================================
  Coverage   98.15%   98.15%           
=======================================
  Files         117      117           
  Lines       10851    10851           
=======================================
  Hits        10651    10651           
  Misses        200      200

Impacted Files	Coverage Δ
...aturetools/primitives/standard/binary_transform.py	100% <100%> (ø)	⬆️

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[apemann]

Thank you @rwedge and @kmax12!