Deprecate `LinkConfig` constructor with an unused `useConfirms` argument.

[emgre]

See https://groups.google.com/g/automatak-dnp3/c/CY_i9VGMMiY

[codecov[bot]]

Codecov Report

Merging #439 (c87d6df) into develop (e8b1de4) will decrease coverage by 0.02%. The diff coverage is 0.00%.

:exclamation: Current head c87d6df differs from pull request most recent head 8f72ac8. Consider uploading reports for the commit 8f72ac8 to get more accurate results

@@             Coverage Diff             @@
##           develop     #439      +/-   ##
===========================================
- Coverage    51.36%   51.34%   -0.03%     
===========================================
  Files          423      423              
  Lines        13444    13444              
===========================================
- Hits          6906     6903       -3     
- Misses        6538     6541       +3     

Impacted Files	Coverage Δ
cpp/lib/include/opendnp3/link/LinkConfig.h	0.00% <0.00%> (ø)
...pp/lib/include/opendnp3/master/MasterStackConfig.h	0.00% <0.00%> (ø)
cpp/lib/src/app/PrefixedWriteIterator.h	95.23% <0.00%> (-4.77%)	:arrow_down:
cpp/lib/src/gen/LinkFunction.cpp	65.82% <0.00%> (-2.54%)	:arrow_down:
cpp/lib/src/app/parsing/CountIndexParser.cpp	59.74% <0.00%> (-0.65%)	:arrow_down:
cpp/lib/src/transport/TransportLayer.cpp	95.31% <0.00%> (+1.56%)	:arrow_up:

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