Remove obsolete PathFilter class

[arturbosch]

No description provided.

[codecov-io]

Codecov Report

Merging #2367 into master will increase coverage by 0.04%.
The diff coverage is 50%.

@@             Coverage Diff             @@
##             master   #2367      +/-   ##
===========================================
+ Coverage     82.85%   82.9%   +0.04%     
+ Complexity     2160    2153       -7     
===========================================
  Files           352     351       -1     
  Lines          6067    6054      -13     
  Branches       1111    1106       -5     
===========================================
- Hits           5027    5019       -8     
+ Misses          469     466       -3     
+ Partials        571     569       -2

Impacted Files	Coverage Δ	Complexity Δ
.../gitlab/arturbosch/detekt/cli/console/Colorizer.kt	76.92% <0%> (ø)	0 <0> (ø)	⬇️
...ain/kotlin/io/gitlab/arturbosch/detekt/cli/Junk.kt	33.33% <100%> (+13.33%)	0 <0> (ø)	⬇️
...itlab/arturbosch/detekt/api/internal/Validation.kt	33.33% <0%> (-16.67%)	0% <0%> (ø)
...b/arturbosch/detekt/api/internal/DetektPomModel.kt	66.66% <0%> (-8.34%)	5% <0%> (ø)
...osch/detekt/api/internal/KotlinEnvironmentUtils.kt	84.9% <0%> (-1.37%)	0% <0%> (ø)
...gitlab/arturbosch/detekt/cli/runners/AstPrinter.kt	100% <0%> (ø)	4% <0%> (ø)	⬇️
...ch/detekt/api/internal/ValidatableConfiguration.kt	100% <0%> (ø)	0% <0%> (ø)	⬇️
...tlin/io/gitlab/arturbosch/detekt/cli/ReportPath.kt	100% <0%> (ø)	1% <0%> (ø)	⬇️

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