Remove unused deprecated testing helper method

[caendesilva]

No description provided.

[codecov]

Codecov Report

Merging #857 (27371bb) into master (5244994) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff              @@
##              master      #857     +/-   ##
=============================================
  Coverage     100.00%   100.00%             
- Complexity      1246      2492   +1246     
=============================================
  Files            148       296    +148     
  Lines           3255      6510   +3255     
=============================================
+ Hits            3255      6510   +3255     

Impacted Files	Coverage Δ
...evelop/packages/framework/src/Facades/Includes.php	100.00% <0.00%> (ø)
...elop/packages/framework/src/Pages/MarkdownPost.php	100.00% <0.00%> (ø)
...ork/src/Foundation/Concerns/ForwardsFilesystem.php	100.00% <0.00%> (ø)
...ckages/framework/src/Foundation/PageCollection.php	100.00% <0.00%> (ø)
develop/packages/framework/src/Facades/Meta.php	100.00% <0.00%> (ø)
...packages/framework/src/Pages/Concerns/HydePage.php	100.00% <0.00%> (ø)
...ures/BuildTasks/PostBuildTasks/GenerateSitemap.php	100.00% <0.00%> (ø)
...ures/BuildTasks/PostBuildTasks/GenerateRssFeed.php	100.00% <0.00%> (ø)
develop/packages/framework/src/Facades/Site.php	100.00% <0.00%> (ø)
...s/framework/src/Support/Filesystem/ProjectFile.php	100.00% <0.00%> (ø)
... and 138 more

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