Remove mention to LINTABLE_MINOR_VERSIONS since it is gone

[juampynr]

This variable got removed at 4065717ebf23209381b

[CLAassistant]

All committers have signed the CLA.

[abhinav]

Thanks!

[codecov]

Codecov Report

Merging #1109 (5de1889) into master (88a8b01) will decrease coverage by 0.10%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1109      +/-   ##
==========================================
- Coverage   98.36%   98.26%   -0.11%     
==========================================
  Files          49       48       -1     
  Lines        2145     2136       -9     
==========================================
- Hits         2110     2099      -11     
- Misses         27       28       +1     
- Partials        8        9       +1     

Impacted Files	Coverage Δ
zapcore/sampler.go	96.22% <0.00%> (-3.78%)	⬇️
array_go118.go

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