diff --git a/jms/serializer-bundle/1.2/etc/packages/dev/jms_serializer.yaml b/jms/serializer-bundle/1.2/etc/packages/dev/jms_serializer.yaml
deleted file mode 100644
index dabd2c39..00000000
--- a/jms/serializer-bundle/1.2/etc/packages/dev/jms_serializer.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-jms_serializer:
-    visitors:
-        json:
-            options: JSON_PRETTY_PRINT
diff --git a/jms/serializer-bundle/1.2/etc/packages/jms_serializer.yaml b/jms/serializer-bundle/1.2/etc/packages/jms_serializer.yaml
deleted file mode 100644
index 08ef29de..00000000
--- a/jms/serializer-bundle/1.2/etc/packages/jms_serializer.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-jms_serializer:
-    enable_short_alias: false
-    handlers:
-        datetime:
-            default_format: 'Y-m-d\TH:i:sP'
-    visitors:
-        xml:
-            format_output: '%kernel.debug%'
-#    auto_detection: false
-#    directories:
-#        any-name:
-#            namespace_prefix: "My\\FooBundle"
-#            path: "@MyFooBundle/Resources/config/serializer"
-#        another-name:
-#            namespace_prefix: "My\\BarBundle"
-#            path: "@MyBarBundle/Resources/config/serializer"
diff --git a/jms/serializer-bundle/1.2/manifest.json b/jms/serializer-bundle/1.2/manifest.json
deleted file mode 100644
index 48be6ec3..00000000
--- a/jms/serializer-bundle/1.2/manifest.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-    "bundles": {
-        "JMS\\SerializerBundle\\JMSSerializerBundle": ["all"]
-    },
-    "copy-from-recipe": {
-        "etc/": "%ETC_DIR%"
-    }
-}
diff --git a/jms/serializer-bundle/1.5/etc/packages/dev/jms_serializer.yaml b/jms/serializer-bundle/1.5/etc/packages/dev/jms_serializer.yaml
deleted file mode 100644
index dabd2c39..00000000
--- a/jms/serializer-bundle/1.5/etc/packages/dev/jms_serializer.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-jms_serializer:
-    visitors:
-        json:
-            options: JSON_PRETTY_PRINT
diff --git a/jms/serializer-bundle/1.5/etc/packages/jms_serializer.yaml b/jms/serializer-bundle/1.5/etc/packages/jms_serializer.yaml
deleted file mode 100644
index 1dde6bac..00000000
--- a/jms/serializer-bundle/1.5/etc/packages/jms_serializer.yaml
+++ /dev/null
@@ -1,24 +0,0 @@
-jms_serializer:
-    enable_short_alias: false
-    handlers:
-        datetime:
-            default_format: 'Y-m-d\TH:i:sP'
-        array_collection:
-            initialize_excluded: false # suggested false for better performance
-    subscribers:
-        doctrine_proxy:
-            initialize_virtual_types: false # suggested false for better performance
-            initialize_excluded: false # suggested false for better performance
-    visitors:
-        xml:
-            format_output: '%kernel.debug%'
-
-#    metadata:
-#        auto_detection: false
-#        directories:
-#            any-name:
-#                namespace_prefix: "My\\FooBundle"
-#                path: "@MyFooBundle/Resources/config/serializer"
-#            another-name:
-#                namespace_prefix: "My\\BarBundle"
-#                path: "@MyBarBundle/Resources/config/serializer"
diff --git a/jms/serializer-bundle/1.5/manifest.json b/jms/serializer-bundle/1.5/manifest.json
deleted file mode 100644
index 48be6ec3..00000000
--- a/jms/serializer-bundle/1.5/manifest.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-    "bundles": {
-        "JMS\\SerializerBundle\\JMSSerializerBundle": ["all"]
-    },
-    "copy-from-recipe": {
-        "etc/": "%ETC_DIR%"
-    }
-}