Skip all webgl_conformance suites on the GPU FYI TSAN bot.

testing/buildbot/chromium.gpu.fyi.json

 {
   "AAAAA1 AUTOGENERATED FILE DO NOT EDIT": {},
   "AAAAA2 See generate_buildbot_json.py to make changes": {},
   "Android Release (NVIDIA Shield)": {
     "gtest_tests": [
       {
         "override_isolate_target": "angle_end2end_tests",
         "swarming": {
           "can_use_on_swarming_builders": false,
           "cipd_packages": [
@@ skipping 3699 matching lines @@
         "name": "angle_perftests",
         "swarming": {
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
               "gpu": "10de:104a",
               "os": "Ubuntu"
             }
           ]
         }
-      },
-      {
-        "args": [
-          "webgl_conformance",
-          "--show-stdout",
-          "--browser=release",
-          "-v",
-          "--extra-browser-args=--enable-logging=stderr --js-flags=--expose-gc --use-gl=angle --use-angle=gl --use-passthrough-cmd-decoder"
-        ],
-        "isolate_name": "telemetry_gpu_integration_test",
-        "name": "webgl_conformance_gl_passthrough_tests",
-        "override_compile_targets": [
-          "telemetry_gpu_integration_test_run"
-        ],
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "gpu": "10de:104a",
-              "os": "Ubuntu"
-            }
-          ]
-        }
       }
     ]
   },
   "Linux Release (AMD R5 230)": {
     "gtest_tests": [
       {
         "args": [
           "--use-gpu-in-tests",
           "--test-launcher-retry-limit=0"
         ],
@@ skipping 16391 matching lines @@
             {
               "gpu": "10de:104a",
               "os": "Windows-2008ServerR2-SP1"
             }
           ]
         }
       }
     ]
   }
 }