Remove enable_media_router.

chrome/browser/media/router/media_router_feature.cc

Index: chrome/browser/media/router/media_router_feature.cc
diff --git a/chrome/browser/media/router/media_router_feature.cc b/chrome/browser/media/router/media_router_feature.cc
index d1a617ce836c93d6f09b5245532864509a87c1fd..5e636a39f4a110898c3df1b6e3ad9053c86fbb47 100644
--- a/chrome/browser/media/router/media_router_feature.cc
+++ b/chrome/browser/media/router/media_router_feature.cc
@@ -8,17 +8,14 @@
 #include "content/public/browser/browser_context.h"
 #include "extensions/features/features.h"
 
-#if defined(ENABLE_MEDIA_ROUTER)
 #if defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
 #include "components/user_prefs/user_prefs.h"
 #endif  // defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
-#endif  // defined(ENABLE_MEDIA_ROUTER)
 
 namespace media_router {
 
-#if defined(ENABLE_MEDIA_ROUTER)
 #if defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
 namespace {
 const PrefService::Preference* GetMediaRouterPref(
@@ -28,10 +25,8 @@ const PrefService::Preference* GetMediaRouterPref(
 }
 }  // namespace
 #endif  // defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
-#endif  // defined(ENABLE_MEDIA_ROUTER)
 
 bool MediaRouterEnabled(content::BrowserContext* context) {
-#if defined(ENABLE_MEDIA_ROUTER)
 #if defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
   const PrefService::Preference* pref = GetMediaRouterPref(context);
   // Only use the pref value if it set from a mandatory policy.
@@ -44,9 +39,6 @@ bool MediaRouterEnabled(content::BrowserContext* context) {
 #else  // !(defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS))
   return false;
 #endif  // defined(OS_ANDROID) || BUILDFLAG(ENABLE_EXTENSIONS)
-#else   // !defined(ENABLE_MEDIA_ROUTER)
-  return false;
-#endif  // defined(ENABLE_MEDIA_ROUTER)
 }
 
 }  // namespace media_router