Remove unused AM_SET_LIBTOOL_VARIABLE m4 macro

It was once used with Automake and Zend's build files. Call has been
removed via e1f101d79840e171f1dcfe17f8ae7a3d0be7e89d

diff --git a/Zend/acinclude.m4 b/Zend/acinclude.m4
index 549c2ea806e52cefb7650ee93b84ce009d59dc87..ad3c19c4f945b0dfd7fe701d71221d94e2784d52 100644 (file)
--- a/Zend/acinclude.m4
+++ b/Zend/acinclude.m4
@@ -79,10 +79,6 @@ AC_DEFUN([AC_ZEND_BROKEN_SPRINTF],[
   AC_DEFINE_UNQUOTED(ZEND_BROKEN_SPRINTF, $ac_result, [Whether sprintf is broken])
 ])
 
-AC_DEFUN([AM_SET_LIBTOOL_VARIABLE],[
-  LIBTOOL='$(SHELL) $(top_builddir)/libtool $1'
-])
-
 dnl x87 floating point internal precision control checks
 dnl See: http://wiki.php.net/rfc/rounding
 AC_DEFUN([ZEND_CHECK_FLOAT_PRECISION],[