Revert of [Telemetry] Set the number of processes to use for telemetry_unittests on win

chrome/telemetry_unittests.isolate

Index: chrome/telemetry_unittests.isolate
diff --git a/chrome/telemetry_unittests.isolate b/chrome/telemetry_unittests.isolate
index fb8c4015ba4e7f9c9cf6cbfb38f5fbd2769a3b98..14b5d8a3a3502289d6cee61af02a555485f5a70a 100644
--- a/chrome/telemetry_unittests.isolate
+++ b/chrome/telemetry_unittests.isolate
@@ -15,31 +15,12 @@
           '../testing/scripts/common.py',
           '../testing/scripts/run_telemetry_as_googletest.py',
         ],
-      }
-    }],
-    ['OS=="mac"', {
-      'variables': {
-        'command': [
-          '../testing/scripts/run_telemetry_as_googletest.py',
-          '../tools/telemetry/run_tests',
-          '-v',
-          '--chrome-root',
-          '..',
-        ],
-      },
-    }],
-    ['OS=="win"', {
-      'variables': {
         'command': [
           '../testing/scripts/run_telemetry_as_googletest.py',
           '../tools/telemetry/run_tests',
           '-v',
           '--chrome-root',
           '..',
-          # crbug.com/559154
-          # TODO(nednguyen): Remove --jobs=1 once the bug is fixed to speed up
-          # the test run.
-          '--job=1',
         ],
       },
     }],