Clean up unnecessary quotes

playbooks/common/openshift-checks/health.yml

@@ -6,7 +6,7 @@
   roles:
   - openshift_health_checker
   vars:
-  - r_openshift_health_checker_playbook_context: "health"
+  - r_openshift_health_checker_playbook_context: health
   post_tasks:
   - action: openshift_health_check
     args:

playbooks/common/openshift-checks/pre-install.yml

@@ -6,7 +6,7 @@
   roles:
   - openshift_health_checker
   vars:
-  - r_openshift_health_checker_playbook_context: "pre-install"
+  - r_openshift_health_checker_playbook_context: pre-install
   post_tasks:
   - action: openshift_health_check
     args:

playbooks/common/openshift-cluster/config.yml

@@ -6,7 +6,7 @@
   roles:
   - openshift_health_checker
   vars:
-  - r_openshift_health_checker_playbook_context: "install"
+  - r_openshift_health_checker_playbook_context: install
   post_tasks:
   - action: openshift_health_check
     args: