diffutils & diffstat: fix up EXTRA_OECONF

The following line is meant to be in diffutils but it was added to
diffstat by accident. The commit message which introduced this line
says that it's for diffutils.

     EXTRA_OECONF += "--without-libsigsegv-prefix"

This patch fixes this problem.

(From OE-Core rev: a27a6f93d6add381e001c38cd24c9575a04d4fa5)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/diffstat/diffstat_1.59.bb

@@ -16,8 +16,6 @@ SRC_URI[sha256sum] = "267d1441b8889cbefbb7ca7dfd4a17f6c8bc73bc114904c74ecad945a3
 
 S = "${WORKDIR}/diffstat-${PV}"
 
-EXTRA_OECONF += "--without-libsigsegv-prefix"
-
 inherit autotools gettext ptest
 
 do_configure () {

meta/recipes-extended/diffutils/diffutils_3.3.bb

@@ -7,6 +7,8 @@ SRC_URI = "${GNU_MIRROR}/diffutils/diffutils-${PV}.tar.xz \
            file://run-ptest \
 "
 
+EXTRA_OECONF += "--without-libsigsegv-prefix"
+
 do_configure_prepend () {
 	# Need to remove gettext macros with weird mix of versions
 	for i in codeset.m4 gettext_gl.m4 intlmacosx.m4 inttypes-pri.m4 lib-ld_gl.m4 lib-prefix_gl.m4 po_gl.m4 ssize_t.m4 wchar_t.m4 wint_t.m4; do