argp: Remove old includes in !_LIBC case

The headers mempcpy.h, strcase.h, strchrnul.h, and strndup.h are
included if not building argp for glibc. Commit
c5af724c0b214a517f8558887f7a70efcfa2c813 added them in 2003 for gnulib,
but gnulib's current master patches them out:
https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/argp-namefrob.h;h=9c82ac79c215540f986c3e04398edba3ba1b7234;hb=HEAD

diff --git a/argp/argp-namefrob.h b/argp/argp-namefrob.h
index 2b6a4f1ea81ce1a45d5fc26a46117b4df9ee87ff..baed8f19995a26b733b4c4ea2a028ff447f7aafc 100644 (file)
--- a/argp/argp-namefrob.h
+++ b/argp/argp-namefrob.h
@@ -76,11 +76,6 @@
 #undef __argp_fmtstream_wmargin
 #define __argp_fmtstream_wmargin argp_fmtstream_wmargin
 
-#include "mempcpy.h"
-#include "strcase.h"
-#include "strchrnul.h"
-#include "strndup.h"
-
 /* normal libc functions we call */
 #undef __flockfile
 #define __flockfile flockfile