libtool: remove host specific info from header file

https://sources.debian.org/data/main/libt/libtool/2.4.6-10/debian/patches/
        no_hostname.patch

Upstream-Status: Inappropriate [not author]
Signed-off-by: Joe Slater <joe.slater@windriver.com>

---
Index: libtool-2.4.6/m4/libtool.m4
===================================================================
--- libtool-2.4.6.orig/m4/libtool.m4
+++ libtool-2.4.6/m4/libtool.m4
@@ -728,7 +728,6 @@ _LT_CONFIG_SAVE_COMMANDS([
     cat <<_LT_EOF >> "$cfgfile"
 #! $SHELL
 # Generated automatically by $as_me ($PACKAGE) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
 # NOTE: Changes made to this file will be lost: look at ltmain.sh.
 
 # Provide generalized library-building support services.