remove unneeded xdisplaycheck dep in base_unittests_run

base/base_unittests.isolate

Index: base/base_unittests.isolate
diff --git a/base/base_unittests.isolate b/base/base_unittests.isolate
index b1c270ca89d8f948f0fbc51bc0a4ef609af2ff6d..57fc4d2e5319d1d24526001334d8bdd66a2abeee 100644
--- a/base/base_unittests.isolate
+++ b/base/base_unittests.isolate
@@ -2,38 +2,18 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
+  'variables': {
+    'command': [
+      '../testing/test_env.py',
+      '<(PRODUCT_DIR)/base_unittests<(EXECUTABLE_SUFFIX)',
+      '--brave-new-test-launcher',
+      '--test-launcher-bot-mode',
+      '--asan=<(asan)',
+      '--msan=<(msan)',
+      '--tsan=<(tsan)',
+    ],
+  },
   'conditions': [
-    ['use_x11==0', {
-      'variables': {
-        'command': [
-          '../testing/test_env.py',
-          '<(PRODUCT_DIR)/base_unittests<(EXECUTABLE_SUFFIX)',
-          '--brave-new-test-launcher',
-          '--test-launcher-bot-mode',
-          '--asan=<(asan)',
-          '--msan=<(msan)',
-          '--tsan=<(tsan)',
-        ],
-      },
-    }],
-    ['use_x11==1', {
-      'variables': {
-        'command': [
-          '../testing/xvfb.py',
-          '<(PRODUCT_DIR)',
-          '<(PRODUCT_DIR)/base_unittests<(EXECUTABLE_SUFFIX)',
-          '--brave-new-test-launcher',
-          '--test-launcher-bot-mode',
-          '--asan=<(asan)',
-          '--msan=<(msan)',
-          '--tsan=<(tsan)',
-        ],
-        'files': [
-          '../testing/xvfb.py',
-          '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
-        ],
-      },
-    }],
     ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'files': [