package/dovecot: drop host-gettext

AM_ICONV is not needed since drop of autoreconf in commit
03fbb81b8bab7bad135b59267533be7688babe39

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit aa90237546ba3bafcc53545731dda45026515d7d)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/dovecot/dovecot.mk

@@ -15,8 +15,6 @@ DOVECOT_DEPENDENCIES = \
 	host-pkgconf \
 	$(if $(BR2_PACKAGE_LIBICONV),libiconv) \
 	openssl
-# add host-gettext for AM_ICONV macro
-DOVECOT_DEPENDENCIES += host-gettext
 
 # CVE-2016-4983 is an issue in a postinstall script in the dovecot rpm, which
 # is part of the Red Hat packaging and not part of upstream dovecot