Remove mojo_runner_host_unittests from all bot configurations

testing/buildbot/chromium.linux.json

 {
   "Android Arm64 Builder (dbg)": {
     "additional_compile_targets": [
       "all"
     ]
   },
   "Android Builder": {
     "additional_compile_targets": [
       "cronet_test_instrumentation_apk",
       "system_webview_apk"
@@ skipping 900 matching lines @@
                 "=android%2Fswarming%2Flogcats%2F",
                 "${TASK_ID}%2F%2B%2Funified_logcats"
               ],
               "name": "shard #${SHARD_INDEX} logcats"
             }
           ]
         },
         "test": "mojo_public_system_unittests"
       },
       {
-        "override_isolate_target": "mojo_runner_host_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "cipd_packages": [
-            {
-              "cipd_package": "infra/tools/luci/logdog/butler/${platform}",
-              "location": "bin",
-              "revision": "git_revision:3ff24775a900b675866fbcacf2a8f98a18b2a16a"
-            }
-          ],
-          "dimension_sets": [
-            {
-              "android_devices": "4",
-              "device_os": "KTU84P",
-              "device_type": "hammerhead"
-            }
-          ],
-          "hard_timeout": 60,
-          "output_links": [
-            {
-              "link": [
-                "https://luci-logdog.appspot.com/v/?s",
-                "=android%2Fswarming%2Flogcats%2F",
-                "${TASK_ID}%2F%2B%2Funified_logcats"
-              ],
-              "name": "shard #${SHARD_INDEX} logcats"
-            }
-          ]
-        },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "override_isolate_target": "mojo_system_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
           "cipd_packages": [
             {
               "cipd_package": "infra/tools/luci/logdog/butler/${platform}",
               "location": "bin",
               "revision": "git_revision:3ff24775a900b675866fbcacf2a8f98a18b2a16a"
             }
           ],
@@ skipping 1255 matching lines @@
                 "=android%2Fswarming%2Flogcats%2F",
                 "${TASK_ID}%2F%2B%2Funified_logcats"
               ],
               "name": "shard #${SHARD_INDEX} logcats"
             }
           ]
         },
         "test": "mojo_public_system_unittests"
       },
       {
-        "override_isolate_target": "mojo_runner_host_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "cipd_packages": [
-            {
-              "cipd_package": "infra/tools/luci/logdog/butler/${platform}",
-              "location": "bin",
-              "revision": "git_revision:3ff24775a900b675866fbcacf2a8f98a18b2a16a"
-            }
-          ],
-          "dimension_sets": [
-            {
-              "android_devices": "4",
-              "device_os": "KTU84P",
-              "device_type": "hammerhead"
-            }
-          ],
-          "hard_timeout": 60,
-          "output_links": [
-            {
-              "link": [
-                "https://luci-logdog.appspot.com/v/?s",
-                "=android%2Fswarming%2Flogcats%2F",
-                "${TASK_ID}%2F%2B%2Funified_logcats"
-              ],
-              "name": "shard #${SHARD_INDEX} logcats"
-            }
-          ]
-        },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "override_isolate_target": "mojo_system_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
           "cipd_packages": [
             {
               "cipd_package": "infra/tools/luci/logdog/butler/${platform}",
               "location": "bin",
               "revision": "git_revision:3ff24775a900b675866fbcacf2a8f98a18b2a16a"
             }
           ],
@@ skipping 953 matching lines @@
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "mojo_public_system_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "mojo_runner_host_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "mojo_system_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "mus_clipboard_unittests"
       },
       {
         "swarming": {
@@ skipping 1141 matching lines @@
         "override_compile_targets": [
           "telemetry_unittests_run"
         ],
         "swarming": {
           "can_use_on_swarming_builders": true
         }
       }
     ]
   }
 }