doc: update after gettext changes

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
CC: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

docs/manual/adding-packages-gettext.txt

@@ -27,18 +27,14 @@ Therefore, Buildroot defines two configuration options:
 
 Therefore, packages that unconditionally need gettext should:
 
-* Use +select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT+ and possibly
-  +select BR2_PACKAGE_LIBINTL if BR2_NEEDS_GETTEXT+, if libintl is
-  also needed
+* Use +select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT+
 
 * Use +$(if $(BR2_NEEDS_GETTEXT),gettext)+ in the package
   +DEPENDENCIES+ variable
 
 Packages that need gettext only when locale support is enabled should:
 
-* Use +select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE+ and
-  possibly +select BR2_PACKAGE_LIBINTL if
-  BR2_NEEDS_GETTEXT_IF_LOCALE+, if libintl is also needed
+* Use +select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE+
 
 * Use +$(if $(BR2_NEEDS_GETTEXT_IF_LOCALE),gettext)+ in the package
   +DEPENDENCIES+ variable