Stop running telemetry_perf_unittest on linux_android_rel_ng

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 1481 matching lines @@
                 "=android%2Fswarming%2Flogcats%2F",
                 "${TASK_ID}%2F%2B%2Funified_logcats"
               ],
               "name": "shard #${SHARD_INDEX} logcats"
             }
           ]
         },
         "test": "webview_instrumentation_test_apk"
       }
     ],
-    "isolated_scripts": [
-      {
-        "args": [
-          "--browser=android-chromium",
-          "--device=android",
-          "--skip=benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.*"
-        ],
-        "isolate_name": "telemetry_perf_unittests",
-        "name": "telemetry_perf_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "android_devices": "6",
-              "device_os": "KTU84P",
-              "device_type": "hammerhead"
-            }
-          ],
-          "hard_timeout": 1500,
-          "shards": 1
-        }
-      }
-    ],
     "junit_tests": [
       {
         "test": "base_junit_tests"
       },
       {
         "test": "chrome_junit_tests"
       },
       {
         "test": "components_background_task_scheduler_junit_tests"
       },
@@ skipping 3667 matching lines @@
         "isolate_name": "telemetry_unittests",
         "name": "telemetry_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 4
         }
       }
     ]
   }
 }