Remove option for apache < 2.4

apache 2.4 was released long time ago and is now available in recent
operating systems.

Change-Id: If367869e8490159f31c7d6c0207e182dd7ecb164
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

Author: kajinamit

files/apache-cinder-api.template

@@ -6,21 +6,13 @@ Listen %PUBLICPORT%
     WSGIScriptAlias / %CINDER_BIN_DIR%/cinder-wsgi
     WSGIApplicationGroup %{GLOBAL}
     WSGIPassAuthorization On
-    <IfVersion >= 2.4>
-      ErrorLogFormat "%{cu}t %M"
-    </IfVersion>
+    ErrorLogFormat "%{cu}t %M"
     ErrorLog /var/log/%APACHE_NAME%/c-api.log
     %SSLENGINE%
     %SSLCERTFILE%
     %SSLKEYFILE%
 
     <Directory %CINDER_BIN_DIR%>
-        <IfVersion >= 2.4>
-            Require all granted
-        </IfVersion>
-        <IfVersion < 2.4>
-            Order allow,deny
-            Allow from all
-        </IfVersion>
+        Require all granted
     </Directory>
 </VirtualHost>

files/apache-horizon.template

@@ -21,19 +21,9 @@
     <Directory %HORIZON_DIR%/>
         Options Indexes FollowSymLinks MultiViews
         AllowOverride None
-        # Apache 2.4 uses mod_authz_host for access control now (instead of
-        #  "Allow")
-        <IfVersion < 2.4>
-            Order allow,deny
-            Allow from all
-        </IfVersion>
-        <IfVersion >= 2.4>
-            Require all granted
-        </IfVersion>
+        Require all granted
     </Directory>
-    <IfVersion >= 2.4>
-      ErrorLogFormat "%{cu}t %M"
-    </IfVersion>
+    ErrorLogFormat "%{cu}t %M"
     ErrorLog /var/log/%APACHE_NAME%/horizon_error.log
     LogLevel warn
     CustomLog /var/log/%APACHE_NAME%/horizon_access.log combined

files/apache-nova-api.template

@@ -6,9 +6,7 @@ Listen %PUBLICPORT%
     WSGIScriptAlias / %PUBLICWSGI%
     WSGIApplicationGroup %{GLOBAL}
     WSGIPassAuthorization On
-    <IfVersion >= 2.4>
-      ErrorLogFormat "%M"
-    </IfVersion>
+    ErrorLogFormat "%M"
     ErrorLog /var/log/%APACHE_NAME%/nova-api.log
     %SSLENGINE%
     %SSLCERTFILE%

files/apache-nova-metadata.template

@@ -6,9 +6,7 @@ Listen %PUBLICPORT%
     WSGIScriptAlias / %PUBLICWSGI%
     WSGIApplicationGroup %{GLOBAL}
     WSGIPassAuthorization On
-    <IfVersion >= 2.4>
-      ErrorLogFormat "%M"
-    </IfVersion>
+    ErrorLogFormat "%M"
     ErrorLog /var/log/%APACHE_NAME%/nova-metadata.log
     %SSLENGINE%
     %SSLCERTFILE%