TT#72807 Let's remove OLD ngcp-panel core muting in trunk/mr8.2+

It is staying here for a while and most probably is no longer necessary.
Let's remove it and see is it still topical, maybe we should consider to
fix it finally if it is topical. Anyway with muting here we are blind.

Change-Id: I87a8d65b5c7affebed027fc0b23983525d9b911d

testrunner

@@ -8,19 +8,6 @@ diag() {
   echo "$@" 2>&1
 }
 
-if ls /var/lib/systemd/coredump/core.perl-fcgi* >/dev/null 2>&1 ; then
-  diag "================== NOTE: CORE DUMP DETECTED =================="
-  diag "= Removing known cores to prevent failing for the known issues:"
-  diag "= 1) MT#21791: Renaming ngcp-panel cores /var/lib/systemd/coredump/core.perl-fcgi*"
-  ls -la /var/lib/systemd/coredump/core.perl-fcgi*
-  for file in /var/lib/systemd/coredump/core.perl-fcgi* ; do
-    mv "${file}" /var/lib/systemd/coredump/RENAMED_"$(basename "${file}")"
-  done
-  diag "= New cores names are:"
-  ls -la /var/lib/systemd/coredump/RENAMED_core.perl-fcgi*
-  diag "========================== DONE =============================="
-fi
-
 goss="goss-0.3.5-e6140f90+patch_319-linux-amd64"
 
 if [ ! -x "/usr/sbin/${goss}" ] ; then