tests: do not skip network tests on minimal template

Plain minimial template wont work, but this allows testing if minimal +
just networking packages installed. Specifically, this tests if
installing qubes-core-agent-networking is enough to get networking
working with minimal template.

qubes/tests/integ/network.py

@@ -72,11 +72,6 @@ def setUp(self):
                 "Test not supported here - Whonix uses its own "
                 "firewall settings"
             )
-        if self.template.endswith("-minimal"):
-            self.skipTest(
-                "Test not supported here - minimal template don't have "
-                "networking packages by default"
-            )
         self.init_default_template(self.template)
         self.testnetvm = self.app.add_new_vm(
             qubes.vm.appvm.AppVM, name=self.make_vm_name("netvm1"), label="red"