remove decorators from skipped tests

test.py

@@ -28,7 +28,6 @@ def test_matvec(ctx_factory):
     assert la.norm(a@b - c, 2)/la.norm(c) < 1e-5
 
 
-@pytest.mark.skip("slow")
 def test_compute_flux_derivatives(ctx_factory):
     logging.basicConfig(level="INFO")
 
@@ -94,7 +93,6 @@ def get_gpu_transformed_weno():
     return prg
 
 
-@pytest.mark.skip("fails")
 def test_compute_flux_derivatives_gpu(ctx_factory):
     logging.basicConfig(level="INFO")