Revert of [swarming] Isolate v8 testing.

build/all.gyp

Index: build/all.gyp
diff --git a/build/all.gyp b/build/all.gyp
index 1640b972e7dfcbd603171ac689bc0872361c6065..4aeb507dcab73eaa19fed6706746abc134ecc9ff 100644
--- a/build/all.gyp
+++ b/build/all.gyp
@@ -19,16 +19,6 @@
             '../tools/parser-shell.gyp:parser-shell',
           ],
         }],
-        ['test_isolation_mode != "noop"', {
-          'dependencies': [
-            '../test/default.gyp:*',
-            '../test/developer_default.gyp:*',
-            '../test/intl/intl.gyp:*',
-            '../test/message/message.gyp:*',
-            '../test/mjsunit/mjsunit.gyp:*',
-            '../test/preparser/preparser.gyp:*',
-          ],
-        }],
       ]
     }
   ]