Removing extensions::FeatureSwitch which is no longer used

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 899fa2e1e7368b7893ad058acd6501afc49fa610..fa3c332f699e8fe1ccf75b6c8e1f0da0b331f5f6 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -97,7 +97,6 @@ using extensions::ExtensionIdSet;
 using extensions::ExtensionInfo;
 using extensions::ExtensionRegistry;
 using extensions::ExtensionSet;
-using extensions::FeatureSwitch;
 using extensions::InstallVerifier;
 using extensions::ManagementPolicy;
 using extensions::Manifest;
@@ -2140,7 +2139,6 @@ bool ExtensionService::ShouldEnableOnInstall(const Extension* extension) {
   if (extension_prefs_->IsExtensionDisabled(extension->id()))
     return false;
 
-  if (FeatureSwitch::prompt_for_external_extensions()->IsEnabled()) {
     // External extensions are initially disabled. We prompt the user before
     // enabling them. Hosted apps are excepted because they are not dangerous
     // (they need to be launched by the user anyway).
@@ -2149,7 +2147,6 @@ bool ExtensionService::ShouldEnableOnInstall(const Extension* extension) {
         !extension_prefs_->IsExternalExtensionAcknowledged(extension->id())) {
       return false;
     }
-  }
 
   return true;
 }