Reland [telemetry] Timeline model cleanups

tools/telemetry/telemetry/core/timeline/event_unittest.py

Index: tools/telemetry/telemetry/core/timeline/event_unittest.py
diff --git a/tools/telemetry/telemetry/core/timeline/event_unittest.py b/tools/telemetry/telemetry/core/timeline/event_unittest.py
index 7c965f0bb6fca620e4f75de77c08b5d38380dddd..2c80c32146bb8c52ecb460142ac81c5bc5b7d340 100644
--- a/tools/telemetry/telemetry/core/timeline/event_unittest.py
+++ b/tools/telemetry/telemetry/core/timeline/event_unittest.py
@@ -4,24 +4,5 @@
 
 import unittest
 
-from telemetry.core.timeline import event
-
 class TimelineEventTest(unittest.TestCase):
-  def testChildrenLogic(self):
-    # [      top          ]
-    #   [ a  ]    [  b  ]
-    #    [x]
-    top = event.TimelineEvent('top', 0, 10)
-    a = event.TimelineEvent('a', 1, 2)
-    x = event.TimelineEvent('x', 1.5, 0.25)
-    b = event.TimelineEvent('b', 5, 2)
-    top.children.extend([a, b])
-    a.children.append(x)
-
-    all_children = top.GetAllChildrenRecursive(include_self=True)
-    self.assertEquals([top, a, x, b], all_children)
-
-    self.assertEquals(x.self_time, 0.25)
-    self.assertEquals(a.self_time, 1.75) # 2 - 0.25
-    self.assertEquals(top.self_time, 6) # 10 - 2 -2
-
+  pass