package/check: disable doc

documentation can be disabled since version 0.13.0 and
https://github.com/libcheck/check/commit/8ca1f79a73c374e9e9172937938947584c921659

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/check/check.mk

@@ -10,6 +10,7 @@ CHECK_INSTALL_STAGING = YES
 CHECK_DEPENDENCIES = host-pkgconf
 CHECK_LICENSE = LGPL-2.1+
 CHECK_LICENSE_FILES = COPYING.LESSER
+CHECK_CONF_OPTS = --disable-build-docs
 
 # Having checkmk in the target makes no sense
 define CHECK_REMOVE_CHECKMK