Restore inadvertent changes.

Author: trexfeathers

benchmarks/asv.conf.json

@@ -4,6 +4,7 @@
     "project_url": "https://github.com/SciTools/iris",
     "repo": "..",
     "environment_type": "conda-delegated",
+    "conda_channels": ["conda-forge", "defaults"],
     "show_commit_url": "http://github.com/scitools/iris/commit/",
     "branches": ["upstream/main"],
 

benchmarks/asv_delegated_conda.py

@@ -66,8 +66,6 @@ def __init__(
             ignored.append("`requirements`")
         if tagged_env_vars:
             ignored.append("`tagged_env_vars`")
-        if conf.conda_channels:
-            ignored.append("conda_channels")
         if conf.conda_environment_file:
             ignored.append("`conda_environment_file`")
         message = (
@@ -77,8 +75,6 @@ def __init__(
         log.warning(message)
         requirements = {}
         tagged_env_vars = {}
-        # All that is required to create ASV's bare-bones environment.
-        conf.conda_channels = ["defaults"]
         conf.conda_environment_file = None
 
         super().__init__(conf, python, requirements, tagged_env_vars)