Revert of Extensions: Only create Web request rules registry if Declarative Web Request is enabled.

extensions/common/features/feature.h

Index: extensions/common/features/feature.h
diff --git a/extensions/common/features/feature.h b/extensions/common/features/feature.h
index 0664e1737f04e3f7f2eb738183a971a3e2b1f7d7..d3179bb9b2a21b40a75ddc808f05296699275590 100644
--- a/extensions/common/features/feature.h
+++ b/extensions/common/features/feature.h
@@ -10,7 +10,6 @@
 
 #include "base/strings/string_piece.h"
 #include "base/values.h"
-#include "components/version_info/version_info.h"
 #include "extensions/common/manifest.h"
 
 class GURL;
@@ -137,12 +136,6 @@
                                             const GURL& url,
                                             Platform platform) const = 0;
 
-  // Returns the availability of the feature on the given |channel|. The
-  // availability result will either be IS_AVAILABLE, UNSUPPORTED_CHANNEL or
-  // NOT_PRESENT.
-  virtual Availability IsAvailableToChannel(
-      version_info::Channel channel) const = 0;
-
   // Returns true if the feature is available to the current environment,
   // without needing to know information about an Extension or any other
   // contextual information. Typically used when the Feature is purely