Remove network_prediction_enabled from profile_io_data.

chrome/browser/profiles/profile_io_data.h

Index: chrome/browser/profiles/profile_io_data.h
diff --git a/chrome/browser/profiles/profile_io_data.h b/chrome/browser/profiles/profile_io_data.h
index b43b0d467dfd458cd78553d3dec2b98c2c014a60..3d126be99e8e267b0aa59150c35879bef489a6e6 100644
--- a/chrome/browser/profiles/profile_io_data.h
+++ b/chrome/browser/profiles/profile_io_data.h
@@ -196,11 +196,6 @@ class ProfileIOData {
     return &signin_allowed_;
   }
 
-  // TODO(bnc): remove per https://crbug.com/334602.
-  BooleanPrefMember* network_prediction_enabled() const {
-    return &network_prediction_enabled_;
-  }
-
   IntegerPrefMember* network_prediction_options() const {
     return &network_prediction_options_;
   }
@@ -553,7 +548,6 @@ class ProfileIOData {
   mutable BooleanPrefMember printing_enabled_;
   mutable BooleanPrefMember sync_disabled_;
   mutable BooleanPrefMember signin_allowed_;
-  mutable BooleanPrefMember network_prediction_enabled_;
   mutable IntegerPrefMember network_prediction_options_;
   // TODO(marja): Remove session_startup_pref_ if no longer needed.
   mutable IntegerPrefMember session_startup_pref_;