diff --git a/librpc/idl/security.idl b/librpc/idl/security.idl
index 5930f448955..4dcc37a0c51 100644
--- a/librpc/idl/security.idl
+++ b/librpc/idl/security.idl
@@ -592,19 +592,11 @@ interface security
 		[relative] security_acl *dacl; /* user (discretionary) ACL */
 	} security_descriptor;
 
-	[nopython] void decode_security_descriptor (
-		[in] security_descriptor sd
-		);
-
 	typedef [public] struct {
 		[range(0,0x40000),value(ndr_size_security_descriptor(sd,ndr->flags))] uint32 sd_size;
 		[subcontext(4)] security_descriptor *sd;
 	} sec_desc_buf;
 
-	[nopython] void decode_sec_desc_buf (
-		[in] sec_desc_buf sd_buf
-		);
-
 	/* This is not yet sent over the network, but is simply defined in IDL */
 	typedef [public] struct {
 		uint32 num_sids;
@@ -613,10 +605,6 @@ interface security
 		lsa_SystemAccessModeFlags rights_mask;
 	} security_token;
 
-	[nopython] void decode_security_token (
-		[in] security_token token
-		);
-
 	/* This is not yet sent over the network, but is simply defined in IDL */
 	typedef [public] struct {
 		uid_t uid;
@@ -625,10 +613,6 @@ interface security
 		[size_is(ngroups)] gid_t groups[*];
 	} security_unix_token;
 
-	[nopython] void decode_security_unix_token (
-		[in] security_unix_token unix_token
-		);
-
 	/* bits that determine which parts of a security descriptor
 	   are being queried/set */
 	typedef [public,bitmap32bit] bitmap {