Get rid of BR2_HAVE_{MANPAGES,INFOPAGES} config options

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Config.in

@@ -300,24 +300,11 @@ config BR2_PREFER_STATIC_LIB
 
 	  WARNING: This is highly experimental at the moment.
 
-config BR2_HAVE_MANPAGES
-	bool "manpages on the target"
-	help
-	  Leave the manpages on the target.
-	  If you say n here, your target will not contain any
-	  manpage.
-
-config BR2_HAVE_INFOPAGES
-	bool "infopages on the target"
-	help
-	  Leave the infopages on the target.
-	  If you say n here, your target will not contain any
-	  infopage.
-
 config BR2_HAVE_DOCUMENTATION
 	bool "documentation on the target"
 	help
-	  Leave the documentation on the target.
+	  Install the documentation, including manual pages and info
+	  pages, on the target.
 	  If you say n here, your target will not contain any
 	  documentation.