Remove DHECiphers feature flag.

components/ssl_config/ssl_config_service_manager_pref.cc

Index: components/ssl_config/ssl_config_service_manager_pref.cc
diff --git a/components/ssl_config/ssl_config_service_manager_pref.cc b/components/ssl_config/ssl_config_service_manager_pref.cc
index 94d2f8d37089f963ee1682445398c43d1550009c..a870ab12a0c4aaf1ca708e6c6fe05656a788963c 100644
--- a/components/ssl_config/ssl_config_service_manager_pref.cc
+++ b/components/ssl_config/ssl_config_service_manager_pref.cc
@@ -85,10 +85,6 @@ uint16_t SSLProtocolVersionFromString(const std::string& version_str) {
   return version;
 }
 
-const base::Feature kDHECiphersFeature{
-    "DHECiphers", base::FEATURE_DISABLED_BY_DEFAULT,
-};
-
 const base::Feature kTLS13Feature{
     "NegotiateTLS13", base::FEATURE_DISABLED_BY_DEFAULT,
 };
@@ -198,14 +194,6 @@ SSLConfigServiceManagerPref::SSLConfigServiceManagerPref(
       io_task_runner_(io_task_runner) {
   DCHECK(local_state);
 
-  // Restore DHE-based ciphers if enabled via features.
-  // TODO(davidben): Remove this when the removal has succeeded.
-  // https://crbug.com/619194.
-  if (base::FeatureList::IsEnabled(kDHECiphersFeature)) {
-    local_state->SetDefaultPrefValue(ssl_config::prefs::kDHEEnabled,
-                                     new base::FundamentalValue(true));
-  }
-
   if (base::FeatureList::IsEnabled(kTLS13Feature)) {
     local_state->SetDefaultPrefValue(
         ssl_config::prefs::kSSLVersionMax,