[OE-core] leafpad: Fix configure flags

[Richard Purdie]

Remove the now unused gtktest configure flag and add one for the emacs option
so we're deterministic. Resolves the warning:

WARNING: QA Issue: leafpad: configure was passed unrecognised options: --disable-gtktest

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/recipes-sato/leafpad/leafpad_0.8.18.1.bb b/meta/recipes-sato/leafpad/leafpad_0.8.18.1.bb
index 273cc72..246bc5f 100644
--- a/meta/recipes-sato/leafpad/leafpad_0.8.18.1.bb
+++ b/meta/recipes-sato/leafpad/leafpad_0.8.18.1.bb
@@ -19,7 +19,7 @@ SRC_URI_append_poky = " file://owl-menu.patch;apply=yes "
 
 inherit autotools pkgconfig
 
-EXTRA_OECONF = " --enable-chooser --disable-gtktest --disable-print"
+EXTRA_OECONF = " --enable-chooser --disable-emacs --disable-print"
 
 do_install_append () {
         install -d ${D}/${datadir}