Fix also the test_remove__pre_fs_pyramids

[pwalczysko]

What this PR does

Fixes https://merge-ci.openmicroscopy.org/jenkins/job/OMERO-test-integration/lastCompletedBuild/testReport/OmeroPy.test.integration.clitest.test_pyramids/TestRemovePyramidsFullAdmin/test_remove__pre_fs_pyramids/

• The main fix is necessary because the Image which has been imported has no StatsInfo, i.e. setting the True to False in the following block (preventing the copying of the non-existent Statsinfo) was necessary:

new_img = pixels_service.copyAndResizeImage(
                orig_pix.image.id.val, rint(4000), rint(4000), rint(1),
                rint(1), [0], None, False).val

Further, there was a second copy of the image which was inserting Pixels. This was crashing as the Pixels were not produced in time (again, NFS effect). So removed the line self.copyPixels(...)

Testing this PR

See if the Jenkins build passes.

[pwalczysko]

This seems to have failed in build 18 on Jenkins (it was passing on previous builds where this fix was included).
The build 18 was run without the OmeroJava which preceeds the OmeroPy suite.

Not sure why the failure happened exactly in build 18, not before.... seems pretty random.

Nevertheless, should we not simply drop testing removal of pre-fs stuff ? cc @will-moore @jburel