Revert "Allow more failures of test-cases on Windows"

This reverts commit cdee7ff.

Author: EliahKagan

etc/test-fixtures-windows-expected-failures-see-issue-1358.txt

@@ -1,7 +1,4 @@
-gix-diff-tests::diff index::renames_by_identity
-gix-diff-tests::diff tree_with_rewrites::renames_by_identity
 gix-glob::glob pattern::matching::compare_baseline_with_ours
-gix-merge::merge tree::run_baseline
 gix-pathspec::pathspec parse::baseline
 gix-pathspec::pathspec parse::valid::glob_negations_are_always_literal
 gix-pathspec::pathspec parse::valid::whitespace_in_pathspec