Disable content_unittests on Fuchsia x64 bot

content_unittests are failing on Fuchsia.

TBR=thakis@chromium.org

Bug: 910029
Change-Id: Ie567ad03904e3ec27143c3a1bec1a86562c74c18
Reviewed-on: https://chromium-review.googlesource.com/c/1359057Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613241}

testing/buildbot/chromium.linux.json

@@ -657,21 +657,6 @@
         },
         "test": "base_unittests"
       },
-      {
-        "args": [
-          "--test-launcher-filter-file=../../testing/buildbot/filters/fuchsia.content_unittests.filter",
-          "--qemu-require-kvm"
-        ],
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "kvm": "1"
-            }
-          ]
-        },
-        "test": "content_unittests"
-      },
       {
         "args": [
           "--qemu-require-kvm"

testing/buildbot/test_suite_exceptions.pyl

@@ -404,6 +404,10 @@
     },
   },
   'content_unittests': {
+    'remove_from': [
+      # chromium.linux
+      'Fuchsia x64',  # https://crbug.com/910029
+    ],
     'modifications': {
       # chromium.memory
       'Linux ASan LSan Tests (1)': {