Remove the "emit-ara-html" role

The "ara-report" role provides the same functionality and defaults
out of the box and adds integration for dynamic database loading.

This is removed as per the deprecation notice [1] a few months ago.

[1]: http://lists.zuul-ci.org/pipermail/zuul-announce/2018-March/000007.html

Change-Id: I1f5eda980b59cb43735d35a4670930f683dc0130

roles/emit-ara-html/README.rst

@@ -1,35 +0,0 @@
-**THIS ROLE IS DEPRECATED**, please use the ``ara-report`` role instead.
-``ara-report`` provides the same default behavior with the generation of a HTML
-report and provides additional functionality that can be used to dynamically
-load databases for improved performance and scalability.
-
-Have ARA generate html logs if ARA and ARA data are both present.
-
-**Role Variables**
-
-.. zuul:rolevar:: ara_generate_html
-
-   Whether to generate a static ARA HTML report or not.
-   Possible values:
-
-   - ``true`` (always generate a report)
-   - ``false`` (never generate a report)
-   - ``failure`` (only generate a report on failure)
-
-   Defaults to ``true``.
-
-.. zuul:rolevar:: ara_compress_html
-
-   Whether to compress the ARA HTML output or not.
-   Defaults to ``true``.
-
-.. zuul:rolevar:: ara_save_database
-
-   Whether the ARA sqlite database should be saved as part of the logs.
-   Defaults to ``false``.
-
-.. tip::
-   Make sure the web server is configured to set the required mimetypes_ in
-   order to serve gzipped content properly.
-
-.. _mimetypes: https://git.openstack.org/cgit/openstack-infra/puppet-openstackci/tree/templates/logs.vhost.erb?id=5fe1f3d2d5e40c2458721e7dcf8631d62ea2525f#n24

roles/emit-ara-html/defaults/main.yaml

@@ -1,12 +0,0 @@
-# Whether to generate a static ARA HTML report or not
-# Possible values:
-#   - true (always)
-#   - false (never)
-#   - 'failure' (only on failure)
-ara_generate_html: true
-
-# Whether to compress the ARA HTML output or not
-ara_compress_html: true
-
-# Whether to save the ARA sqlite database as part of the logs or not
-ara_save_database: false

roles/emit-ara-html/tasks/main.yaml

@@ -1,43 +0,0 @@
-- name: Warn about deprecated role
-  debug:
-    msg: |
-      The emit-ara-html role is deprecated.
-      Please use the ara-report role instead.
-
-- name: Check for ARA db
-  stat:
-    path: "{{ zuul.executor.work_root }}/.ara/ansible.sqlite"
-  register: ara_db_stat
-
-- name: Save the ARA database
-  command: |
-    cp "{{ zuul.executor.work_root }}/.ara/ansible.sqlite" \
-    {{ zuul.executor.log_root }}
-  when:
-    - ara_db_stat.stat.exists
-    - ara_save_database | bool
-
-- name: Check for ARA install
-  command: bash -c "type -p ara"
-  ignore_errors: yes
-  register: ara_command_type
-  when: ara_db_stat.stat.exists
-
-- when:
-    - ara_command_type.rc == 0
-    - not ara_command_type | skipped
-  block:
-    # Always generate (true), never (false) or only on failure ('failure')
-    # Additionally cover for edge cases where zuul_success might be undefined
-    - name: Generate ARA html output
-      command: "ara generate html {{ zuul.executor.log_root }}/ara"
-      ignore_errors: yes
-      when: ara_generate_html | bool or
-            (ara_generate_html == 'failure' and not zuul_success | default(false) | bool)
-      register: ara_generated
-
-    - name: Compress ARA html output
-      command: gzip --recursive --best {{ zuul.executor.log_root }}/ara
-      ignore_errors: yes
-      when:
-        - not ara_generated | skipped