testsute: tar: don't pass --force-local on Windows

GNU tar supports the options but other tar's don't. The current Windows
setup on github runners seem to use a tar that doesn't.

Author: ulysses4ever

cabal-testsuite/src/Test/Cabal/Prelude.hs

@@ -529,7 +529,6 @@ src `archiveTo` dst = do
     -- TODO: --format ustar, like createArchive?
     -- --force-local is necessary for handling colons in Windows paths.
     tar $ ["-czf", dst]
-       ++ ["--force-local" | buildOS == Windows]
        ++ ["-C", src_parent, src_dir]
 
 infixr 4 `archiveTo`