Remove TopSites::IsEnabled() as well as related dead code.

chrome/tools/profiles/generate_profile.cc

Index: chrome/tools/profiles/generate_profile.cc
diff --git a/chrome/tools/profiles/generate_profile.cc b/chrome/tools/profiles/generate_profile.cc
index 9bf4b838f3534683e05aec694c1035a2dc6f0dc2..445d8bb1eeced4d9566ef4774eb3bf27182d9ce0 100644
--- a/chrome/tools/profiles/generate_profile.cc
+++ b/chrome/tools/profiles/generate_profile.cc
@@ -139,8 +139,7 @@ void InsertURLBatch(Profile* profile,
   GURL previous_url;
   PageTransition::Type transition = PageTransition::TYPED;
   const int end_page_id = page_id + batch_size;
-  history::TopSites* top_sites =
-      history::TopSites::IsEnabled() ? profile->GetTopSites() : NULL;
+  history::TopSites* top_sites = profile->GetTopSites();
   for (; page_id < end_page_id; ++page_id) {
     // Randomly decide whether this new URL simulates following a link or
     // whether it's a jump to a new URL.