Apply the semantic patch rm-malloc-cast.cocci.

for dir in library programs; do
        spatch --sp-file scripts/rm-malloc-cast.cocci --dir $dir \
        --in-place;
    done

library/asn1parse.c

@@ -269,7 +269,7 @@ int asn1_get_sequence_of( unsigned char **p,
         /* Allocate and assign next pointer */
         if( *p < end )
         {
-            cur->next = (asn1_sequence *) polarssl_malloc(
+            cur->next = polarssl_malloc(
                  sizeof( asn1_sequence ) );
 
             if( cur->next == NULL )