package/expat: drop host-pkgconf dependency

Drop host-pkgconf dependency which has been wrongly added by commit
732d94d25fd10fff65a378b03c3fca9bde403e95. Indeed, expat doesn't use
pkgconf to retrieve dependencies

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 5bc935665bc08d4e144f6aea0786df5aaade248a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/expat/expat.mk

@@ -8,8 +8,6 @@ EXPAT_VERSION = 2.4.7
 EXPAT_SITE = http://downloads.sourceforge.net/project/expat/expat/$(EXPAT_VERSION)
 EXPAT_SOURCE = expat-$(EXPAT_VERSION).tar.xz
 EXPAT_INSTALL_STAGING = YES
-EXPAT_DEPENDENCIES = host-pkgconf
-HOST_EXPAT_DEPENDENCIES = host-pkgconf
 EXPAT_LICENSE = MIT
 EXPAT_LICENSE_FILES = COPYING
 EXPAT_CPE_ID_VENDOR = libexpat_project