Remove kernel.core_pattern from sysctl.conf

Only if it's in there, which tpaexec will set.  tpaexec currently forces
some value to be set, and sometimes we want to use the distro's default
or another tool's preferred value that it may manage, like
systemd-coredump.  If we leave kernel.core_pattern in /etc/sysctl.conf,
tpaexec configures the system to run it last so it'll override anything
set before it.

This can be removed at a later time, when tpaexec can be used to not
set kernel.core_pattern.

roles/manage_operating_system/tasks/enable_core_dump.yml

@@ -1,4 +1,18 @@
 ---
+# This and reloading sysctl can be removed when tpaexec doesn't force any
+# kernel.core_pattern to be set.
+- name: Remove kernel.core_pattern from tpaexec installed sysctl file
+  ansible.builtin.lineinfile:
+    path: /etc/sysctl.conf
+    search_string: kernel.core_pattern=core.%e.%p.%t
+    state: absent
+  become: true
+
+- name: Reload sysctl settings
+  ansible.builtin.command:
+    cmd: sysctl -p --system
+  become: true
+
 - name: Enable unlimited core size for all users
   community.general.pam_limits:
     domain: "*"