aurweb: remove unused php-fpm.conf.j2 template

Fixes: 92586d5b ("change(aurweb): rework ansible config for 6.0.0")

roles/aurweb/templates/php-fpm.conf.j2

-[global]
-error_log = syslog
-daemonize = no
-
-[{{ aurweb_user }}]
-listen = {{ aurweb_socket }}
-listen.owner = {{ aurweb_user }}
-listen.group = http
-listen.mode = 0660
-
-pm = dynamic
-pm.max_children = 80
-pm.start_servers = 20
-pm.min_spare_servers = 10
-pm.max_spare_servers = 20
-pm.max_requests = 2000
-
-php_admin_value[open_basedir] = {{aurweb_dir}}:/etc/aurweb/
-php_admin_value[upload_tmp_dir] = {{ aurweb_dir }}/uploads
-php_admin_value[session.save_path] = {{ aurweb_dir }}/sessions
-env[TMPDIR] = {{ aurweb_dir }}/uploads