Drop compatibility with Koji < 1.32

The 1.32 version with checksum API has been released more than 2 years
ago.

Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
(cherry picked from commit 65336b406c01a99ccc9dabd011cc969b4395e106)

pungi/phases/pkgset/pkgsets.py

@@ -548,8 +548,6 @@ class KojiPackageSet(PackageSetBase):
         pathinfo = self.koji_wrapper.koji_module.pathinfo
         paths = []
 
-        if "getRPMChecksums" in self.koji_wrapper.koji_methods:
-
         def checksum_validator(keyname, pkg_path):
             checksums = self.koji_proxy.getRPMChecksums(
                 rpm_info["id"], checksum_types=("sha256",)
@@ -559,12 +557,6 @@ class KojiPackageSet(PackageSetBase):
                 if computed["sha256"] != checksums[keyname]["sha256"]:
                     raise RuntimeError("Checksum mismatch for %s" % pkg_path)
 
-        else:
-
-            def checksum_validator(keyname, pkg_path):
-                # Koji doesn't support checksums yet
-                pass
-
         attempts_left = self.signed_packages_retries + 1
         while attempts_left > 0:
             for sigkey in self.sigkey_ordering:

pungi/wrappers/kojiwrapper.py

@@ -72,8 +72,6 @@ class KojiWrapper(object):
             self.koji_proxy = tracing.instrument_xmlrpc_proxy(
                 koji.ClientSession(self.koji_module.config.server, session_opts)
             )
-            with tracing.span("koji.system.listMethods"):
-                self.koji_methods = self.koji_proxy.system.listMethods()
 
     # This retry should be removed once https://pagure.io/koji/issue/3170 is
     # fixed and released.

tests/test_pkgset_pkgsets.py

@@ -158,7 +158,6 @@ class TestKojiPkgset(PkgsetCompareMixin, helpers.PungiTestCase):
         self.koji_downloader = helpers.FSKojiDownloader()
         self.koji_wrapper = mock.Mock()
         self.koji_wrapper.koji_proxy.listTaggedRPMS.return_value = self.tagged_rpms
-        self.koji_wrapper.koji_methods = ["getRPM", "getRPMChecksums"]
         self.koji_wrapper.koji_module.pathinfo = self.path_info
 
     def _touch_files(self, filenames):