Refactor downloads to use download role directly (#1824)

* Refactor downloads to use download role directly

Also disable fact delegation so download delegate works acros OSes.

* clean up bools and ansible_os_family conditionals

roles/network_plugin/calico/meta/main.yml

@@ -1,21 +0,0 @@
----
-dependencies:
-  - role: download
-    file: "{{ downloads.calico_cni }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calico_node }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calicoctl }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.hyperkube }}"
-    tags:
-      - download

roles/network_plugin/calico/rr/meta/main.yml

@@ -1,7 +0,0 @@
----
-dependencies:
-  - role: etcd
-  - role: docker
-    when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
-  - role: download
-    file: "{{ downloads.calico_rr }}"

roles/network_plugin/canal/meta/main.yml

@@ -1,26 +0,0 @@
----
-dependencies:
-  - role: download
-    file: "{{ downloads.flannel }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calico_node }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calicoctl }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calico_cni }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.calico_policy }}"
-    tags:
-      - download

roles/network_plugin/flannel/meta/main.yml

@@ -1,11 +0,0 @@
----
-dependencies:
-  - role: download
-    file: "{{ downloads.flannel }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.flannel_cni }}"
-    tags:
-      - download

roles/network_plugin/weave/meta/main.yml

@@ -1,11 +0,0 @@
----
-dependencies:
-  - role: download
-    file: "{{ downloads.weave_kube }}"
-    tags:
-      - download
-
-  - role: download
-    file: "{{ downloads.weave_npc }}"
-    tags:
-      - download