diff --git a/csharp/ql/test/resources/assemblies/System.Data.dll b/csharp/ql/test/resources/assemblies/System.Data.dll deleted file mode 100644 index 070caaa81f3..00000000000 Binary files a/csharp/ql/test/resources/assemblies/System.Data.dll and /dev/null differ diff --git a/csharp/ql/test/resources/assemblies/System.Web.ApplicationServices.dll b/csharp/ql/test/resources/assemblies/System.Web.ApplicationServices.dll deleted file mode 100644 index 85db5a3a7e4..00000000000 Binary files a/csharp/ql/test/resources/assemblies/System.Web.ApplicationServices.dll and /dev/null differ