Remove stages that add default encryption algorithms to output pipelines

The previous commit added default encryption algorithms to the input
pipelines, so there is nothing to do in the output pipeline. Therefore
this commit is pure refactoring.

See ukf/ukf-meta#243 for details

mdx/uk/generate.xml

@@ -289,8 +289,6 @@
                     p:cacheDuration="${cacheDuration.aggregate.duration}"/>
                 <ref bean="stripEntityScopes"/>
 
-                <ref bean="uk_add_cbc_encryption"/>
-
                 <ref bean="uk_finaliseProduction"/>
                 <ref bean="uk_normaliseNamespaces"/>
 
@@ -600,7 +598,6 @@
                 <bean parent="mda.SetCacheDurationStage"
                     p:cacheDuration="${cacheDuration.aggregate.duration}"/>
                 <ref bean="stripEntityScopes"/>
-                <ref bean="uk_add_cbc_encryption"/>
                 <ref bean="stripEmptyExtensions"/>
                 <ref bean="uk_finaliseFallback"/>
                 <ref bean="uk_normaliseFallback"/>
@@ -659,8 +656,6 @@
                     p:cacheDuration="${cacheDuration.aggregate.duration}"/>
                 <ref bean="stripEntityScopes"/>
 
-                <ref bean="uk_add_cbc_encryption"/>
-
                 <ref bean="uk_finaliseTest"/>
                 <ref bean="uk_normaliseTest"/>
 
@@ -775,8 +770,6 @@
                 <ref bean="stripEntityScopes"/>
                 <ref bean="stripEmptyExtensions"/>
 
-                <ref bean="uk_add_cbc_encryption"/>
-
                 <ref bean="uk_finaliseExport"/>
 
                 <bean id="uk_normaliseExport" parent="mda.XSLTransformationStage"
@@ -878,8 +871,6 @@
                 <ref bean="stripEntityScopes"/>
                 <ref bean="stripEmptyExtensions"/>
 
-                <ref bean="uk_add_cbc_encryption"/>
-
                 <ref bean="uk_finaliseExport"/>
 
                 <bean id="uk_normaliseExportPreview" parent="mda.XSLTransformationStage"