Remove unknown unit tests targets from WebKit Linux Oilpan bot

testing/buildbot/chromium.webkit.json

 {
   "Linux ChromiumOS Tests (1)": {
     "gtest_tests": [
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "accessibility_unittests"
       },
       {
@@ skipping 981 matching lines @@
         },
         "test": "google_apis_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "gpu_unittests"
       },
       {
-        "test": "html_viewer_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "interactive_ui_tests"
       },
       {
         "test": "ipc_mojo_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "ipc_tests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "jingle_unittests"
       },
       {
-        "test": "mash_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "media_blink_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "media_unittests"
@@ skipping 31 matching lines @@
         },
         "test": "mojo_public_system_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "mojo_public_utility_unittests"
       },
       {
-        "test": "mojo_runner_host_unittests"
-      },
-      {
         "test": "mojo_shell_unittests"
       },
       {
-        "test": "mojo_surfaces_lib_unittests"
-      },
-      {
         "test": "mojo_system_unittests"
       },
       {
-        "test": "mojo_view_manager_lib_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "nacl_loader_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "net_unittests"
       },
       {
         "test": "ppapi_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "printing_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "remoting_unittests"
       },
       {
-        "test": "resource_provider_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "sandbox_linux_unittests"
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "skia_unittests"
@@ skipping 829 matching lines @@
         "name": "webkit_lint",
         "script": "webkit_lint.py"
       },
       {
         "name": "webkit_python_tests",
         "script": "webkit_python_tests.py"
       }
     ]
   }
 }