Revert changes for trace receiver.

3 jobs for ci in 1 minute and 31 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #18872
build

00:01:14

 
  Ragdoc Build
failed #18873
ragdoc_build

00:00:16

 
  Ragdoc View
skipped #18874
ragdoc_view
 
Name Stage Failure
failed
ragdoc_build Ragdoc Build
$ git clone --recurse-submodules git@git-st.inf.tu-dresden.de:jastadd/ragdoc-builder.git
Cloning into 'ragdoc-builder'...
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Cleaning up file based variables
ERROR: Job failed: exit code 1