Commenting the line that ensure passing the test.

I rather have the test failing until we implement the correct changes.
Hence this test will fail until we implement #584.
I keep that line for testing purposes.

tests/test_commands.py

@@ -76,7 +76,7 @@ def test_cmatrix():
     # Next line is going to be included in the `CMATRIX` wrapper in `mapdl_grpc`.
     # See PR #571.
     # So please comment/delete when that PR is merged.
-    mapdl._response  = mapdl._download_as_raw('cmatrix.out').decode() #TODO: To delete/comment when PR #571 is merged.
+    # mapdl._response  = mapdl._download_as_raw('cmatrix.out').decode() #TODO: To delete/comment when PR #571 is merged.
     assert 'Capacitance matricies are stored in file' in mapdl.last_response
 
     mapdl.finish()