meson: don't pass localedir

For historic reasons the localedir directory is where binary locales are stored
(/usr/lib/locale) , not where application translations belong (typically,
/usr/share/locale).  Don't pass localedir explicitly, and let Meson use the
default of $datadir/locale to match the behaviour of autotools.bbclass and the
expectations of the system.

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/classes/meson.bbclass

@@ -27,7 +27,6 @@ MESONOPTS = " --prefix ${prefix} \
               --includedir ${@noprefix('includedir', d)} \
               --mandir ${@noprefix('mandir', d)} \
               --infodir ${@noprefix('infodir', d)} \
-              --localedir ${@noprefix('localedir', d)} \
               --sysconfdir ${sysconfdir} \
               --localstatedir ${localstatedir} \
               --sharedstatedir ${sharedstatedir}"