Remove dead code relating to interface versions.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9289 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/include/pub_tool_libcproc.h b/include/pub_tool_libcproc.h
index f0f7cfc..8b44a59 100644
--- a/include/pub_tool_libcproc.h
+++ b/include/pub_tool_libcproc.h
@@ -35,9 +35,7 @@
    Command-line and environment stuff
    ------------------------------------------------------------------ */
 
-/* Client args and environment.  Note that VG_(client_argv)[] can be written
-   to by the client, so you should check each entry is non-NULL before
-   printing.  VG_(client_envp) can be inspected with VG_(getenv)(). */
+/* Client environment. */
 extern Char** VG_(client_envp);
 
 /* Looks up VG_(client_envp) */