Remove mojo_runner_host_unittests from all bot configurations

testing/buildbot/chromium.fyi.json

Index: testing/buildbot/chromium.fyi.json
diff --git a/testing/buildbot/chromium.fyi.json b/testing/buildbot/chromium.fyi.json
index 9a46857263703c2126dd3b9cd60d46f9f9ff9bd1..b19d546bb33b47e7c6bec34c013ca6b106716141 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -613,20 +613,6 @@
         "test": "mojo_public_system_unittests"
       },
       {
-        "override_isolate_target": "mojo_runner_host_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "android_devices": "4",
-              "device_type": "gce_x86"
-            }
-          ],
-          "hard_timeout": 60
-        },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "override_isolate_target": "mojo_system_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
@@ -1404,19 +1390,6 @@
         "test": "mojo_public_system_unittests"
       },
       {
-        "override_isolate_target": "mojo_runner_host_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "android_devices": "1",
-              "device_type": "coho"
-            }
-          ]
-        },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "override_isolate_target": "mojo_system_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
@@ -4234,19 +4207,6 @@
         "test": "mojo_public_system_unittests"
       },
       {
-        "override_isolate_target": "mojo_runner_host_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "android_devices": "1",
-              "device_type": "coho"
-            }
-          ]
-        },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "override_isolate_target": "mojo_system_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,