Delete all unused/obsolete .elist files

These (export lists) aren't needed on modern compilers and haven't
been for quite awhile (like 2+ decades).

cde/lib/pam/libpam/libpam.elist

@@ -1,35 +0,0 @@
-/****************************************************************************
- * Export list for libpam. 
- * This list *must* be updated whenever a change is made to the libpam API.
- *
- * The syntax for the symbol declarations in this list is as follows:
- *       public       sym => Public   C   symbol, i.e., publicised API
- *       private      sym => Private  C   symbol, i.e., unpublicised API
- *       internal     sym => Internal C   symbol, i.e., not part of API
- *       publicC++    sym => Public   C++ symbol, i.e., publicised API
- *       privateC++   sym => Private  C++ symbol, i.e., unpublicised API
- *       internalC++  sym => Internal C++ symbol, i.e., not part of API
- * 
- * $TOG: libpam.elist /main/1 1999/09/08 15:03:20 mgreess $
- *****************************************************************************/
-
-public pam_start
-public pam_end
-public pam_set_item
-public pam_get_item
-public pam_get_user
-public pam_set_data
-public pam_get_data
-public pam_strerror
-public pam_authenticate
-public pam_acct_mgmt
-public pam_open_session
-public pam_close_session
-public pam_setcred
-public pam_chauthtok
-
-private __pam_free_resp
-private __pam_display_msg
-private __pam_get_input
-private __pam_get_authtok
-private __pam_get_i18n_msg