Clean up some discrepancies in the perf recipe configs

scripts/slave/recipe_modules/chromium_tests/api.py

Index: scripts/slave/recipe_modules/chromium_tests/api.py
diff --git a/scripts/slave/recipe_modules/chromium_tests/api.py b/scripts/slave/recipe_modules/chromium_tests/api.py
index ed3fb0a126cf5f6682575e314f4ca841d3d0108d..cc37fcfb0bfcb49fa6cacbd228e0a2486c8fdd21 100644
--- a/scripts/slave/recipe_modules/chromium_tests/api.py
+++ b/scripts/slave/recipe_modules/chromium_tests/api.py
@@ -791,11 +791,6 @@ class ChromiumTestsApi(recipe_api.RecipeApi):
     for name in ('buildername', 'slavename', 'buildnumber', 'mastername'):
       properties[name] = self.m.properties[name]
 
-    # Optional properties
-    for name in ('perf-id', 'results-url'):
-      if bot_config.get(name):
-        properties[name] = bot_config[name]
-
     properties['target_platform'] = self.m.chromium.c.TARGET_PLATFORM
 
     args.extend(['--properties', self.m.json.input(properties)])