--- a/netwerk/protocol/http/HttpChannelChild.cpp
+++ b/netwerk/protocol/http/HttpChannelChild.cpp
@@ -1967,21 +1967,16 @@ bool HttpChannelChild::Redirect3Complete
       httpChannelChild->mOverrideRunnable = nullptr;
       httpChannelChild->mInterceptingChannel = nullptr;
     }
     return true;
   }
   return false;
 }
 
-mozilla::ipc::IPCResult HttpChannelChild::RecvCancelRedirected() {
-  CleanupRedirectingChannel(NS_BINDING_REDIRECTED);
-  return IPC_OK();
-}
-
 void HttpChannelChild::CleanupRedirectingChannel(nsresult rv) {
   // Redirecting to new channel: shut this down and init new channel
   if (mLoadGroup) mLoadGroup->RemoveRequest(this, nullptr, NS_BINDING_ABORTED);
 
   if (NS_SUCCEEDED(rv)) {
     nsCString remoteAddress;
     Unused << GetRemoteAddress(remoteAddress);
     nsCOMPtr<nsIURI> referrer;

--- a/netwerk/protocol/http/HttpChannelChild.h
+++ b/netwerk/protocol/http/HttpChannelChild.h
@@ -168,18 +168,16 @@ class HttpChannelChild final : public PH
 
   mozilla::ipc::IPCResult RecvSetPriority(const int16_t& aPriority) override;
 
   mozilla::ipc::IPCResult RecvAttachStreamFilter(
       Endpoint<extensions::PStreamFilterParent>&& aEndpoint) override;
 
   mozilla::ipc::IPCResult RecvCancelDiversion() override;
 
-  mozilla::ipc::IPCResult RecvCancelRedirected() override;
-
   mozilla::ipc::IPCResult RecvOriginalCacheInputStreamAvailable(
       const Maybe<IPCStream>& aStream) override;
 
   mozilla::ipc::IPCResult RecvAltDataCacheInputStreamAvailable(
       const Maybe<IPCStream>& aStream) override;
 
   mozilla::ipc::IPCResult RecvOverrideReferrerInfoDuringBeginConnect(
       nsIReferrerInfo* aReferrerInfo) override;

--- a/netwerk/protocol/http/PHttpChannel.ipdl
+++ b/netwerk/protocol/http/PHttpChannel.ipdl
@@ -152,21 +152,16 @@ child:
   // Associate the child with an application ids
   async AssociateApplicationCache(nsCString groupID,
                                   nsCString clientID);
 
   // Report a security message to the console associated with this
   // channel.
   async ReportSecurityMessage(nsString messageTag, nsString messageCategory);
 
-  // This message is sent to a child that has been redirected to another process.
-  // As a consequence, it should cleanup the channel listeners and remove the
-  // request from the loadGroup.
-  async CancelRedirected();
-
   // Tell child to delete channel (all IPDL deletes must be done from child to
   // avoid races: see bug 591708).
   async DeleteSelf();
 
   // Tell the child to issue a deprecation warning.
   async IssueDeprecationWarning(uint32_t warning, bool asError);
 
   // When CORS blocks the request in the parent process, it doesn't have the