common: remove uncessary conditions and spell red hat entirely

We do not need to run another condition for 'ceph_rhcs' since the
include we came from already has it, so we are already inside this
condition.
We also spell red hat entirely instead of rh and we remove capital
letters.

Signed-off-by: Sébastien Han <seb@redhat.com>

roles/ceph-common/tasks/installs/install_rh_storage_on_debian.yml

@@ -3,15 +3,13 @@
 # ISOs have MON, OSD, Tools, and Agent. If ISOs change the layout or provide
 # certain repos depending on the type of node this task will require a more
 # intelligent way to determine the location of the key.
-- name: install the rh ceph storage repository key
+- name: install the red hat ceph storage repository key
   apt_key:
     file: "{{ ceph_rhcs_repository_path }}/MON/release.asc"
     state: present
-  when:
-    - ceph_rhcs
-    - ceph_rhcs_iso_install
+  when: ceph_rhcs_iso_install
 
-- name: add rh ceph storage repositories
+- name: add red hat ceph storage repositories
   apt_repository:
     repo: "deb file://{{ ceph_rhcs_repository_path }}/{{ item }}/ {{ ansible_lsb.codename }} main"
     state: present
@@ -21,9 +19,7 @@
     - "OSD"
     - "Tools"
     - "Agent"
-  when:
-    - ceph_rhcs
-    - ceph_rhcs_iso_install
+  when: ceph_rhcs_iso_install
 
 - name: set apt pinning for red hat ceph storage
   template:
@@ -33,7 +29,7 @@
     group: root
     mode: 0644
 
-- name: add the red hat storage apt-key
+- name: add red hat storage apt-key
   apt_key:
     data: "{{ lookup('file', role_path+'/files/cephstablerhcs.asc') }}"
     state: present
@@ -89,7 +85,7 @@
     state: "{{ (upgrade_ceph_packages|bool) | ternary('latest','present') }}"
   when: client_group_name in group_names
 
-- name: install red hat storage NFS gateway
+- name: install red hat storage nfs gateway
   apt:
     name: nfs-ganesha
     state: "{{ (upgrade_ceph_packages|bool) | ternary('latest','present') }}"