Revert of Enable traffic shaping in loading.mobile benchmark

tools/perf/benchmarks/loading.py

Index: tools/perf/benchmarks/loading.py
diff --git a/tools/perf/benchmarks/loading.py b/tools/perf/benchmarks/loading.py
index 9a1dcf7f4ffd01ae03bf498308e6cb4277e59d79..04cb69d4a89c26df048d6e64c79db1f194d4d134 100644
--- a/tools/perf/benchmarks/loading.py
+++ b/tools/perf/benchmarks/loading.py
@@ -38,9 +38,9 @@
     return 'loading.mobile'
 
   def CreateStorySet(self, options):
-    return page_sets.LoadingMobileStorySet(
-        cache_temperatures=[cache_temperature.ANY],
-        traffic_settings=[traffic_setting.NONE, traffic_setting.REGULAR_3G])
+    return page_sets.LoadingMobileStorySet(cache_temperatures=[
+          cache_temperature.ANY])
+
 
 
 # Disabled because we do not plan on running CT benchmarks on the perf