Unittests for the Safe Browsing Subresource filter navigation throttle

components/subresource_filter/core/browser/subresource_filter_features.cc

Index: components/subresource_filter/core/browser/subresource_filter_features.cc
diff --git a/components/subresource_filter/core/browser/subresource_filter_features.cc b/components/subresource_filter/core/browser/subresource_filter_features.cc
index acef5adaf65199cd4c78f7f3ddad96d3c9b3ed53..8fc2540d9ca7088d99ad35643c5d26a33376c8ae 100644
--- a/components/subresource_filter/core/browser/subresource_filter_features.cc
+++ b/components/subresource_filter/core/browser/subresource_filter_features.cc
@@ -20,10 +20,6 @@ const base::Feature kSafeBrowsingSubresourceFilter{
 const base::Feature kSafeBrowsingSubresourceFilterExperimentalUI{
     "SubresourceFilterExperimentalUI", base::FEATURE_DISABLED_BY_DEFAULT};
 
-const base::Feature kSubresourceFilterSafeBrowsingActivationThrottle{
-    "SubresourceFilterSafeBrowsingActivationThrottle",
-    base::FEATURE_DISABLED_BY_DEFAULT};
-
 // Legacy name `activation_state` is used in variation parameters.
 const char kActivationLevelParameterName[] = "activation_state";
 const char kActivationLevelDryRun[] = "dryrun";