Revert the AM_ZLIB change in binutils

* configure.ac: Revert the AM_ZLIB change.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

binutils/configure

@@ -13538,14 +13538,18 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
-# Use the system's zlib library.
-zlibdir=-L../zlib
-zlibinc="-I\$(srcdir)/../zlib"
+# Link in zlib if we can.  This allows us to read compressed debug
+# sections.  This is used only by readelf.c (objdump uses bfd for
+# reading compressed sections).
+
+  # Use the system's zlib library.
+  zlibdir=-L../zlib
+  zlibinc="-I\$(srcdir)/../zlib"
 
 # Check whether --with-system-zlib was given.
 if test "${with_system_zlib+set}" = set; then :
   withval=$with_system_zlib; zlibdir=
-zlibinc=
+  zlibinc=
 
 fi
 
@@ -13553,6 +13557,7 @@ fi
 
 
 
+
 case "${host}" in
 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)