Revert workaround for Julia 1.8-DEV

[tkf]

see also JuliaFolds/Transducers.jl#502

[codecov]

Codecov Report

Merging #93 (b002717) into master (b800958) will increase coverage by 0.41%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #93      +/-   ##
==========================================
+ Coverage   95.56%   95.97%   +0.41%     
==========================================
  Files           5        5              
  Lines         609      597      -12     
==========================================
- Hits          582      573       -9     
+ Misses         27       24       -3     

Flag	Coverage Δ
Pkg.test	93.79% <ø> (ø)
Run.test	89.82% <ø> (+0.38%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/reduce.jl	95.89% <0.00%> (-0.11%)	⬇️
src/checkboxes.jl	97.67% <0.00%> (-0.06%)	⬇️
src/macro.jl	95.33% <0.00%> (+1.45%)	⬆️

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[tkf]

Fri, 24 Dec 2021 07:15:24 GMT
[ Info: Precompiling... DONE
Fri, 24 Dec 2021 07:15:25 GMT
[ Info: Running /home/runner/work/FLoops.jl/FLoops.jl/test/runtests.jl
Fri, 24 Dec 2021 08:35:03 GMT
Error: The operation was canceled.

https://github.com/JuliaFolds/FLoops.jl/runs/4625024989?check_suite_focus=true#step:6:32