Revert of chromium_tests: Fix new android compile triggering

scripts/slave/recipe_modules/chromium_tests/chromium_perf.py

Index: scripts/slave/recipe_modules/chromium_tests/chromium_perf.py
diff --git a/scripts/slave/recipe_modules/chromium_tests/chromium_perf.py b/scripts/slave/recipe_modules/chromium_tests/chromium_perf.py
index 7f34fb81f95cadeadc46af5bd411e99cb4825db0..99e7e4c55813af379257673493a68d36243b4e8d 100644
--- a/scripts/slave/recipe_modules/chromium_tests/chromium_perf.py
+++ b/scripts/slave/recipe_modules/chromium_tests/chromium_perf.py
@@ -130,16 +130,14 @@
 
 
 def _AddTestSpec(name, perf_id, platform, target_bits=64,
-                 num_host_shards=1, num_device_shards=1,
-                 parent_buildername=None):
+                 num_host_shards=1, num_device_shards=1):
   for shard_index in xrange(num_host_shards):
     builder_name = '%s (%d)' % (name, shard_index + 1)
     tests = [steps.DynamicPerfTests(
         perf_id, platform, target_bits, num_device_shards=num_device_shards,
         num_host_shards=num_host_shards, shard_index=shard_index)]
     SPEC['builders'][builder_name] = TestSpec(
-        'chromium_perf', perf_id, platform, target_bits, tests=tests,
-        parent_buildername=parent_buildername)
+        'chromium_perf', perf_id, platform, target_bits, tests=tests)
 
 
 _AddBuildSpec('Android Builder', 'android', target_bits=32)
@@ -157,8 +155,7 @@
 _AddTestSpec('Android Nexus5 Perf', 'android-nexus5', 'android',
              target_bits=32, num_device_shards=7, num_host_shards=3)
 _AddTestSpec('Android Nexus5X Perf', 'android-nexus5X', 'android',
-             target_bits=32, num_device_shards=7, num_host_shards=3,
-             parent_buildername='Android Compile')
+             target_bits=32, num_device_shards=7, num_host_shards=3)
 _AddTestSpec('Android Nexus6 Perf', 'android-nexus6', 'android',
              target_bits=32, num_device_shards=7, num_host_shards=3)
 _AddTestSpec('Android Nexus7v2 Perf', 'android-nexus7v2', 'android',