remove unused GitWithRetry

buildbot_nix/__init__.py

@@ -243,32 +243,6 @@ class UpdateBuildOutput(steps.BuildStep):
         return util.SUCCESS
 
 
-# The builtin retry mechanism doesn't seem to work for github,
-# since github is sometimes not delivering the pull request ref fast enough.
-class GitWithRetry(steps.Git):
-    @defer.inlineCallbacks
-    def run_vc(
-        self,
-        branch: str,
-        revision: str,
-        patch: str,
-    ) -> Generator[Any, object, Any]:
-        retry_counter = 0
-        while True:
-            try:
-                res = yield super().run_vc(branch, revision, patch)
-            except Exception as e:  # noqa: BLE001
-                retry_counter += 1
-                if retry_counter == 3:
-                    msg = "Failed to clone"
-                    raise BuildbotNixError(msg) from e
-                log: Log = yield self.addLog("log")
-                yield log.addStderr(f"Retrying git clone (error: {e})\n")
-                yield asyncSleep(2 << retry_counter)  # 2, 4, 8
-            else:
-                return res
-
-
 def nix_eval_config(
     project: GerritProject,
     gerrit_private_key: str,