Revert "Rust: test running windows flaky test multiple times"

This reverts commit 90fa3ec.

Author: Paolo Tranquilli

rust/ql/integration-tests/hello-workspace/test_workspace.py

@@ -1,14 +1,5 @@
-import runs_on
-import pytest
-
-@runs_on.posix
 def test_cargo(codeql, rust, cargo, check_source_archive):
     codeql.database.create()
 
-@runs_on.windows
-@pytest.mark.parametrize("_", range(25))
-def test_cargo_debug(codeql, rust, cargo, check_source_archive, _):
-    codeql.database.create()
-
 def test_rust_project(codeql, rust, rust_project, check_source_archive):
     codeql.database.create()