software/slapos-testing: stop testing slapos.toolbox on python2

This only support python3 since some time

software/slapos-testing/buildout.hash.cfg

@@ -15,4 +15,4 @@
 
 [template]
 filename = instance.cfg
-md5sum = a8bd56d112344ae56138e3a775fec478
+md5sum = 5f5378550470b551d280dd432878a0ba

software/slapos-testing/instance.cfg

@@ -177,19 +177,20 @@ inline =
       cwd="""$${slapos.recipe.template:location}""",
       summaryf=UnitTest.summary,
   )
-  TestCase(
-      "slapos.toolbox",
-      # ['python', '-m', 'unittest', 'discover', '-v'],
-      # XXX We can not just run unittest discover here, since slapos/lamp
-      # imports MySQLDb and we currently don't have installed
-      # slapos.toolbox[lampconfigure] and on python3 discovery make a
-      # failing test for this import error.
-      # Currently slapos/lamp is not tested, but if it it is still used,
-      # the TODO seem to also install slapos.toolbox[lampconfigure] here.
-      ['python', '-m', 'unittest', 'discover', '-v', '--start', 'slapos/test', '--top-level-directory', '.'],
-      cwd="""$${slapos.toolbox:location}""",
-      summaryf=UnitTest.summary,
-  )
+  if six.PY3:
+    TestCase(
+        "slapos.toolbox",
+        # ['python', '-m', 'unittest', 'discover', '-v'],
+        # XXX We can not just run unittest discover here, since slapos/lamp
+        # imports MySQLDb and we currently don't have installed
+        # slapos.toolbox[lampconfigure] and on python3 discovery make a
+        # failing test for this import error.
+        # Currently slapos/lamp is not tested, but if it it is still used,
+        # the TODO seem to also install slapos.toolbox[lampconfigure] here.
+        ['python', '-m', 'unittest', 'discover', '-v', '--start', 'slapos/test', '--top-level-directory', '.'],
+        cwd="""$${slapos.toolbox:location}""",
+        summaryf=UnitTest.summary,
+    )
   TestCase(
       "slapos.libnetworkcache",
       ['python', '-m', 'unittest', '-v', 'slapos.libnetworkcachetests'],