diff --git a/api/rtp_parameters.cc b/api/rtp_parameters.cc
index 308fe72eb7..feba39348d 100644
--- a/api/rtp_parameters.cc
+++ b/api/rtp_parameters.cc
@@ -238,12 +238,6 @@ const RtpExtension* RtpExtension::FindHeaderExtensionByUri(
   return fallback_extension;
 }
 
-const RtpExtension* RtpExtension::FindHeaderExtensionByUri(
-    const std::vector<RtpExtension>& extensions,
-    absl::string_view uri) {
-  return FindHeaderExtensionByUri(extensions, uri, kPreferEncryptedExtension);
-}
-
 const RtpExtension* RtpExtension::FindHeaderExtensionByUriAndEncryption(
     const std::vector<RtpExtension>& extensions,
     absl::string_view uri,
diff --git a/api/rtp_parameters.h b/api/rtp_parameters.h
index 2664ae734a..84f3a0e840 100644
--- a/api/rtp_parameters.h
+++ b/api/rtp_parameters.h
@@ -277,11 +277,6 @@ struct RTC_EXPORT RtpExtension {
       const std::vector<RtpExtension>& extensions,
       absl::string_view uri,
       Filter filter);
-  ABSL_DEPRECATED(
-      "Use RtpExtension::FindHeaderExtensionByUri with filter argument")
-  static const RtpExtension* FindHeaderExtensionByUri(
-      const std::vector<RtpExtension>& extensions,
-      absl::string_view uri);
 
   // Returns the header extension with the given URI and encrypt parameter,
   // if found, otherwise nullptr.