zuul-stream: drop ARA bindep install

We dropped installing ARA here when
I5ce1385245c76818777aa34230786a9dbaf723e5 converting things to using
the Zuul managed versions of Ansible (which installs ARA).  Since we
dropped the required-projects, I think the bindep here has been
silently just not doing anything.

We also stop gzipping the output -- it makes it fairly useless as
you'd have to bulk download the whole thing to unzip it.  I think this
was an artifact of the old logs.openstack.org days.

Needed-By: https://review.opendev.org/c/openstack/project-config/+/777675
Change-Id: I727a088c3176d13b483a0c28f39cbc0f51dad3f6

playbooks/zuul-stream/post-ara.yaml

@@ -4,9 +4,6 @@
     - name: Generate ARA html
       command: /usr/lib/zuul/ansible/{{ zuul_ansible_version }}/bin/ara generate html ara-output
 
-    - name: Compress ARA html
-      command: gzip --recursive --best ara-output
-
     - name: Fetch ARA files
       synchronize:
         src: "{{ ansible_user_dir }}/ara-output"

playbooks/zuul-stream/pre.yaml

@@ -7,9 +7,6 @@
       bindep_profile: test
       bindep_dir: src/opendev.org/zuul/zuul
 
-    - role: bindep
-      bindep_dir: src/opendev.org/recordsansible/ara
-
   post_tasks:
 
     - name: Install software