Remove test for code profiler_event protos.

This proto will be removed in a followup (requires a server change first).

Bug: 739505
Change-Id: I979ff8037b81e983c18f5abe1b964fba4dbb4753
Reviewed-on: https://chromium-review.googlesource.com/683243Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Brett Wilson <brettw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#504221}

components/metrics/metrics_service_unittest.cc

@@ -241,7 +241,6 @@ TEST_F(MetricsServiceTest, InitialStabilityLogAtProviderRequest) {
   EXPECT_TRUE(uma_log.has_system_profile());
   EXPECT_EQ(0, uma_log.user_action_event_size());
   EXPECT_EQ(0, uma_log.omnibox_event_size());
-  EXPECT_EQ(0, uma_log.profiler_event_size());
   EXPECT_EQ(0, uma_log.perf_data_size());
   CheckForNonStabilityHistograms(uma_log);
 
@@ -309,7 +308,6 @@ TEST_F(MetricsServiceTest, InitialStabilityLogAfterCrash) {
   EXPECT_TRUE(uma_log.has_system_profile());
   EXPECT_EQ(0, uma_log.user_action_event_size());
   EXPECT_EQ(0, uma_log.omnibox_event_size());
-  EXPECT_EQ(0, uma_log.profiler_event_size());
   EXPECT_EQ(0, uma_log.perf_data_size());
   CheckForNonStabilityHistograms(uma_log);