ECDSA default certificate in WebRTC: Remove experiment flag kWebRtcEcdsaDefault.

content/public/common/content_features.cc

Index: content/public/common/content_features.cc
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index b257fc39ec1528db416706ae5fe310bbef31b389..69fc62a389555ae2536f922647c0cb74d55eaf88 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -107,11 +107,6 @@ const base::Feature kTokenBinding{"token-binding",
 const base::Feature kWebFontsInterventionV2{"WebFontsInterventionV2",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
-// Makes WebRTC use ECDSA certs by default (i.e., when no cert type was
-// specified in JS).
-const base::Feature kWebRtcEcdsaDefault {"WebRTC-EnableWebRtcEcdsa",
-                                         base::FEATURE_ENABLED_BY_DEFAULT};
-
 // Controls whether the WebUSB API is enabled:
 // https://wicg.github.io/webusb
 const base::Feature kWebUsb{"WebUSB", base::FEATURE_ENABLED_BY_DEFAULT};