Enable RemoveNavigationHistory by default

Enable the RemoveNavigationHistory feature by default as it is launching
in M67.

Bug: 407074
Change-Id: I565db23d988e93b5c1d52a787dedb96be142792a
Reviewed-on: https://chromium-review.googlesource.com/1070150Reviewed-by: Martin Šrámek <msramek@chromium.org>
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561047}

components/browsing_data/core/features.cc

@@ -8,7 +8,7 @@ namespace browsing_data {
 namespace features {
 
 const base::Feature kRemoveNavigationHistory{"RemoveNavigationHistory",
-                                             base::FEATURE_DISABLED_BY_DEFAULT};
+                                             base::FEATURE_ENABLED_BY_DEFAULT};
 
 }  // namespace features
 }  // namespace browsing_data