Remove support for the keygen tag

chrome/test/data/policy/policy_test_cases.json

Index: chrome/test/data/policy/policy_test_cases.json
diff --git a/chrome/test/data/policy/policy_test_cases.json b/chrome/test/data/policy/policy_test_cases.json
index b7d88e6a2f01cac01d55b569a65b12c4663b8e3e..4c5cf7dd6603a5b788a4078ddd0ee961f0a06b2c 100644
--- a/chrome/test/data/policy/policy_test_cases.json
+++ b/chrome/test/data/policy/policy_test_cases.json
@@ -1095,21 +1095,7 @@
   },
 
   "DefaultKeygenSetting": {
-    "os": ["win", "linux", "mac", "chromeos", "android"],
-    "test_policy": { "DefaultKeygenSetting": 2 },
-    "pref_mappings": [
-      { "pref": "profile.managed_default_content_settings.keygen",
-        "indicator_selector": "[content-setting=keygen]",
-        "indicator_tests": [
-          { "policy": { "DefaultKeygenSetting": 1 },
-            "value": "allow"},
-          { "policy": { "DefaultKeygenSetting": 2 },
-            "value": "block"}
-        ]
-      }
-    ],
-
-    "note": "TODO(bartfab): Flag this with can_be_recommended when http://crbug.com/106682 is fixed."
+    "note": "This policy is retired, see https://crbug.com/568184."
   },
 
   "DefaultPluginsSetting": {
@@ -1445,35 +1431,11 @@
   },
 
   "KeygenAllowedForUrls": {
-    "os": ["win", "linux", "mac", "chromeos", "android"],
-    "test_policy": { "KeygenAllowedForUrls": ["[*.]google.com"] },
-    "pref_mappings": [
-      { "pref": "profile.managed_keygen_allowed_for_urls",
-        "indicator_test_setup_js": "document.querySelector('button.exceptions-list-button[contentType=keygen]').click();",
-        "indicator_selector": "[content-exception=keygen]",
-        "indicator_tests": [
-          { "policy": { "KeygenAllowedForUrls": ["[*.]google.com"] } }
-        ]
-      }
-    ],
-
-    "note": "TODO(bartfab): Flag this with can_be_recommended when http://crbug.com/106682 is fixed."
+    "note": "This policy is retired, see https://crbug.com/568184."
   },
 
   "KeygenBlockedForUrls": {
-    "os": ["win", "linux", "mac", "chromeos", "android"],
-    "test_policy": { "KeygenBlockedForUrls": ["[*.]google.com"] },
-    "pref_mappings": [
-      { "pref": "profile.managed_keygen_blocked_for_urls",
-        "indicator_test_setup_js": "document.querySelector('button.exceptions-list-button[contentType=keygen]').click();",
-        "indicator_selector": "[content-exception=keygen]",
-        "indicator_tests": [
-          { "policy": { "KeygenBlockedForUrls": ["[*.]google.com"] } }
-        ]
-      }
-    ],
-
-    "note": "TODO(bartfab): Flag this with can_be_recommended when http://crbug.com/106682 is fixed."
+    "note": "This policy is retired, see https://crbug.com/568184."
   },
 
   "PluginsAllowedForUrls": {