diff --git a/repository/Seaside-Core.package/WARenderContext.class/instance/callbackAt..st b/repository/Seaside-Core.package/WARenderContext.class/instance/callbackAt..st
deleted file mode 100644
index a734715fa..000000000
--- a/repository/Seaside-Core.package/WARenderContext.class/instance/callbackAt..st
+++ /dev/null
@@ -1,4 +0,0 @@
-callbacks
-callbackAt: aString
-	self greaseDeprecatedApi: 'WARenderContext>>#callbackAt:' details: 'Report if you still need it.'.
-	^ callbacks at: aString ifAbsent: [ ]
\ No newline at end of file
diff --git a/repository/Seaside-JSON-Core.package/JSJsonParser.class/README.md b/repository/Seaside-JSON-Core.package/JSJsonParser.class/README.md
deleted file mode 100644
index 13ffa242e..000000000
--- a/repository/Seaside-JSON-Core.package/JSJsonParser.class/README.md
+++ /dev/null
@@ -1 +0,0 @@
-I'm purely for backwards compatibility with Seaside 3.0
\ No newline at end of file
diff --git a/repository/Seaside-JSON-Core.package/JSJsonParser.class/class/isDeprecated.st b/repository/Seaside-JSON-Core.package/JSJsonParser.class/class/isDeprecated.st
deleted file mode 100644
index 32d85251e..000000000
--- a/repository/Seaside-JSON-Core.package/JSJsonParser.class/class/isDeprecated.st
+++ /dev/null
@@ -1,3 +0,0 @@
-testing
-isDeprecated
-	^ true
\ No newline at end of file
diff --git a/repository/Seaside-JSON-Core.package/JSJsonParser.class/properties.json b/repository/Seaside-JSON-Core.package/JSJsonParser.class/properties.json
deleted file mode 100644
index cdb46b4a8..000000000
--- a/repository/Seaside-JSON-Core.package/JSJsonParser.class/properties.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-	"commentStamp" : "pmm 9/14/2013 16:08",
-	"super" : "WAJsonParser",
-	"category" : "Seaside-JSON-Core-Parser",
-	"classinstvars" : [ ],
-	"pools" : [ ],
-	"classvars" : [ ],
-	"instvars" : [ ],
-	"name" : "JSJsonParser",
-	"type" : "normal"
-}
\ No newline at end of file