Bug 1743907 - cleanup webrender from taskgraph. r=releng-reviewers,jcristau

Differential Revision: https://phabricator.services.mozilla.com/D135559

taskcluster/gecko_taskgraph/test/test_util_chunking.py

@@ -158,7 +158,6 @@ def mock_mozinfo():
             "fission": fission,
             "headless": headless,
             "tsan": tsan,
-            "webrender": False,
             "appname": "firefox",
         }
 

taskcluster/gecko_taskgraph/transforms/test/__init__.py

@@ -121,8 +121,6 @@ test_description_schema = Schema(
         Optional("variants"): [str],
         # Whether to run this task without any variants applied.
         Required("run-without-variant"): optionally_keyed_by("test-platform", bool),
-        # Whether the task should run with WebRender enabled or not.
-        Optional("webrender"): bool,
         # The EC2 instance size to run these tests on.
         Required("instance-size"): optionally_keyed_by(
             "test-platform", Any("default", "large", "xlarge")
@@ -327,15 +325,6 @@ def set_defaults(config, tasks):
         else:
             task["allow-software-gl-layers"] = False
 
-        # Enable WebRender by default on the QuantumRender test platforms, since
-        # the whole point of QuantumRender is to run with WebRender enabled.
-        # This currently matches linux64-qr and windows10-64-qr; both of these
-        # have /opt and /debug variants.
-        if "-qr/" in task["test-platform"]:
-            task["webrender"] = True
-        else:
-            task.setdefault("webrender", False)
-
         task.setdefault("try-name", task["test-name"])
         task.setdefault("os-groups", [])
         task.setdefault("run-as-administrator", False)

taskcluster/gecko_taskgraph/transforms/test/other.py

@@ -1053,8 +1053,5 @@ def set_schedules_components(config, tasks):
         schedules.add(category)
         schedules.add(platform_family(task["build-platform"]))
 
-        if task["webrender"]:
-            schedules.add("webrender")
-
         task["schedules-component"] = sorted(schedules)
         yield task

taskcluster/gecko_taskgraph/util/chunking.py

@@ -53,7 +53,6 @@ def guess_mozinfo_from_task(task):
         "fission": any("fission" in key for key in setting["runtime"].keys()),
         "headless": "-headless" in task["test-name"],
         "tsan": setting["build"].get("tsan", False),
-        "webrender": task.get("webrender", True),
     }
     for platform in ("android", "linux", "mac", "win"):
         if p_os["name"].startswith(platform):