Remove unused log_archive_maintenance.sh script

Change I390f6ea8aaace276d211d55a0e17f25dd6ae26b5 removed use of
log_archive_maintenance.sh once it was being installed from the
openstackci module, but never removed the file itself. This has led
to at least one instance of the wrong copy of the file being edited,
followed by surprise and research to understand why it wasn't
updating. Solve this by finishing the cleanup from the original
change.

Change-Id: Id744f8d4d01134aaf33b8a83d875d3aa84f3994b

modules/openstack_project/files/log_archive_maintenance.sh

@@ -1,13 +0,0 @@
-#!/bin/sh
-sleep $((RANDOM%600)) && \
-flock -n /var/run/gziplogs.lock \
-find -O3 /srv/static/logs/ -depth -not -name robots.txt -not -name lost+found \
-        -not -wholename /srv/static/logs/help/\* \( \
-    \( -type f -mmin +10 -not -name \*\[.-\]gz -not -name \*\[._-\]\[zZ\] \
-        \( -name \*.txt -or -name \*.html -or -name tmp\* \) \
-        -exec gzip -f \{\} \; \) \
-    -o \( -type f -mtime +90 -execdir rm \{\} \; \) \
-    -o \( -type d -empty -mtime +1 -execdir rmdir {} \; \) \)
-find -O3 /srv/static/docs-draft/ -depth -not -name lost+found \( \
-    \( -type f -mtime +21 -execdir rm \{\} \; \) \
-    -o \( -type d -empty -mtime +1 -execdir rmdir {} \; \) \)