Temporarily remove telemetry_perf_unittests from Linux Tests (dbg)(1).

Tbr: gbeaty@chromium.org,xiaochengh@chromium.org
No-Try: true
Bug: 934885
Change-Id: Id64c9055e18147297177cf2283918984147c2699
Reviewed-on: https://chromium-review.googlesource.com/c/1490516Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635746}

testing/buildbot/chromium.linux.json

@@ -2414,20 +2414,6 @@
           "idempotent": false
         }
       },
-      {
-        "args": [
-          "--xvfb",
-          "--jobs=1"
-        ],
-        "isolate_name": "telemetry_perf_unittests",
-        "name": "telemetry_perf_unittests",
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "hard_timeout": 960,
-          "idempotent": false,
-          "shards": 12
-        }
-      },
       {
         "args": [
           "--jobs=1",

testing/buildbot/test_suite_exceptions.pyl

@@ -1185,12 +1185,6 @@
           '--jobs=1',
         ],
       },
-      'Linux Tests (dbg)(1)': {
-        'args': [
-          '--xvfb',
-          '--jobs=1',
-        ],
-      },
       'linux-xenial-rel': {
         'args': [
           '--xvfb',
@@ -1232,6 +1226,8 @@
       },
     },
     'remove_from': [
+      # crbug.com/934885
+      'Linux Tests (dbg)(1)',
       'Linux Tests (dbg)(1)(32)',
       'Mac10.13 Tests',
       'Mac10.13 Tests (dbg)',