--- a/chrome/nsChromeRegistry.cpp
+++ b/chrome/nsChromeRegistry.cpp
@@ -27,19 +27,17 @@
 #include "nsIWindowMediator.h"
 #include "nsIPrefService.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/Printf.h"
 #include "mozilla/StyleSheet.h"
 #include "mozilla/StyleSheetInlines.h"
 #include "mozilla/dom/Location.h"
 
-#ifdef ENABLE_INTL_API
 #include "unicode/uloc.h"
-#endif
 
 nsChromeRegistry* nsChromeRegistry::gChromeRegistry;
 
 // DO NOT use namespace mozilla; it'll break due to a naming conflict between
 // mozilla::TextRange and a TextRange in OSX headers.
 using mozilla::StyleSheet;
 using mozilla::dom::IsChromeURI;
 using mozilla::dom::Location;
@@ -633,46 +631,23 @@ nsChromeRegistry::MustLoadURLRemotely(ns
     *aResult = !!(flags & REMOTE_REQUIRED);
   }
   return NS_OK;
 }
 
 bool
 nsChromeRegistry::GetDirectionForLocale(const nsACString& aLocale)
 {
-#ifdef ENABLE_INTL_API
   int pref = mozilla::Preferences::GetInt("intl.uidirection", -1);
   if (pref >= 0) {
     return (pref > 0);
   }
   nsAutoCString locale(aLocale);
   SanitizeForBCP47(locale);
   return uloc_isRightToLeft(locale.get());
-#else
-  // first check the intl.uidirection.<locale> preference, and if that is not
-  // set, check the same preference but with just the first two characters of
-  // the locale. If that isn't set, default to left-to-right.
-  nsAutoCString prefString = NS_LITERAL_CSTRING("intl.uidirection.") + aLocale;
-  nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
-  if (!prefBranch) {
-    return false;
-  }
-
-  nsCString dir;
-  prefBranch->GetCharPref(prefString.get(), getter_Copies(dir));
-  if (dir.IsEmpty()) {
-    int32_t hyphen = prefString.FindChar('-');
-    if (hyphen >= 1) {
-      nsAutoCString shortPref(Substring(prefString, 0, hyphen));
-      prefBranch->GetCharPref(shortPref.get(), getter_Copies(dir));
-    }
-  }
-
-  return dir.EqualsLiteral("rtl");
-#endif
 }
 
 NS_IMETHODIMP_(bool)
 nsChromeRegistry::WrappersEnabled(nsIURI *aURI)
 {
   nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aURI));
   if (!chromeURL)
     return false;
@@ -710,33 +685,23 @@ nsChromeRegistry::GetSingleton()
     return nullptr;
 
   return cr.forget();
 }
 
 void
 nsChromeRegistry::SanitizeForBCP47(nsACString& aLocale)
 {
-#ifdef ENABLE_INTL_API
   // Currently, the only locale code we use that's not BCP47-conformant is
   // "ja-JP-mac" on OS X, but let's try to be more general than just
   // hard-coding that here.
   const int32_t LANG_TAG_CAPACITY = 128;
   char langTag[LANG_TAG_CAPACITY];
   nsAutoCString locale(aLocale);
   UErrorCode err = U_ZERO_ERROR;
   // This is a fail-safe method that will set langTag to "und" if it cannot
   // match any part of the input locale code.
   int32_t len = uloc_toLanguageTag(locale.get(), langTag, LANG_TAG_CAPACITY,
                                    false, &err);
   if (U_SUCCESS(err) && len > 0) {
     aLocale.Assign(langTag, len);
   }
-#else
-  // This is only really needed for Intl API purposes, AFAIK,
-  // so probably won't be used in a non-ENABLE_INTL_API build.
-  // But let's fix up the single anomalous code we actually ship,
-  // just in case:
-  if (aLocale.EqualsLiteral("ja-JP-mac")) {
-    aLocale.AssignLiteral("ja-JP");
-  }
-#endif
 }