Drop workaround for old gophercloud

The capability to detect available API versions was added to
gophercloud 8+ years ago[1] and has been available since v0.1.0.

[1] gophercloud/gophercloud#508

Change-Id: Ie5ea248a04b15215545723303ab225aa1257de66
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

Author: kajinamit

devstack/lib/magnum

@@ -19,7 +19,6 @@
 # - magnum_configure_flavor
 # - start_magnum
 # - configure_iptables_magnum
-# - configure_apache_magnum
 # - stop_magnum
 # - cleanup_magnum
 
@@ -376,45 +375,6 @@ function configure_iptables_magnum {
     fi
 }
 
-function configure_apache_magnum {
-    # Set redirection for kubernetes openstack cloud provider
-    # FIXME: When [1] is in kubernetes, we won't need the redirection anymore.
-    # [1] https://github.com/gophercloud/gophercloud/pull/423
-    HTACCESS_PATH=/var/www/html
-    if is_ubuntu; then
-        OVERRIDE_CONF_FILE=/etc/apache2/apache2.conf
-    elif is_fedora; then
-        OVERRIDE_CONF_FILE=/etc/httpd/conf/httpd.conf
-    fi
-    # If horizon is enabled then we need
-    if is_service_enabled horizon; then
-         HTACCESS_PATH=$DEST/horizon/.blackhole
-         sudo tee -a $APACHE_CONF_DIR/horizon.conf <<EOF
-<Directory $HTACCESS_PATH>
-Options Indexes FollowSymLinks
-AllowOverride all
-Require all granted
-</Directory>
-EOF
-    else
-        sudo tee -a $OVERRIDE_CONF_FILE <<EOF
-<Directory $HTACCESS_PATH>
-    Options Indexes FollowSymLinks
-    AllowOverride all
-    Require all granted
-</Directory>
-EOF
-    fi
-
-    sudo mkdir -p $HTACCESS_PATH
-    sudo tee $HTACCESS_PATH/.htaccess <<EOF
-RewriteEngine on
-RewriteRule ^v2\.0(.*) /identity/v2.0\$1
-RewriteRule ^v3(.*) /identity/v3\$1
-EOF
-    enable_apache_mod rewrite
-}
-
 # start_magnum() - Start running processes, including screen
 function start_magnum {
 

devstack/plugin.sh

@@ -46,7 +46,6 @@ if is_service_enabled magnum-api magnum-cond; then
         start_magnum
 
         configure_iptables_magnum
-        configure_apache_magnum
     fi
 
     if [[ "$1" == "unstack" ]]; then