package/cdrkit: clean {HOST_, }CDRKIT_CONF_OPT

Extending {C,LD}FLAGS for both host and target cdrkit package is not needed
because it is already handled by the {host-,}cmake-package infrastructure.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/cdrkit/cdrkit.mk

@@ -16,12 +16,5 @@ else
 CDRKIT_CONF_OPT += -DBITFIELDS_HTOL=0
 endif
 
-## cdrkit isn't completely re-rooted by CMAKE_FIND_ROOT_PATH, so add
-## some extra flags so it finds needed libs and headers.
-CDRKIT_CONF_OPT += -DCMAKE_C_FLAGS="-I$(STAGING_DIR)/usr/include"
-CDRKIT_CONF_OPT += -DCMAKE_EXE_LINKER_FLAGS="$(TARGET_LDFLAGS)"
-HOST_CDRKIT_CONF_OPT += -DCMAKE_C_FLAGS="-I$(HOST_DIR)/usr/include"
-HOST_CDRKIT_CONF_OPT += -DCMAKE_EXE_LINKER_FLAGS="$(HOST_LDFLAGS)"
-
 $(eval $(cmake-package))
 $(eval $(host-cmake-package))