Disabled the simplify pass again in the tests.

I enabled the simplify pass in commit `411bd7bd` and it worked locally.
However, this was because I was not running it inside nox and using my own version of DaCe.
The bug in simplify was fixed in [PR#1603](spcl/dace#1603) which was merged _after_ 16.1 was released, thus the fix is not avaliable.

tests/integration_tests/primitive_translators/conftest.py

@@ -20,7 +20,12 @@
     autouse=True,
     params=[
         optimization.NO_OPTIMIZATIONS,
-        optimization.DEFAULT_OPTIMIZATIONS,
+        pytest.param(
+            optimization.DEFAULT_OPTIMIZATIONS,
+            marks=pytest.mark.skip(
+                "Simplify bug 'https://github.com/spcl/dace/issues/1595'; resolved > 16.1"
+            ),
+        ),
     ],
 )
 def _set_compile_options(request) -> Generator[None, None, None]: