libmicrohttpd: Remove one CONFLICTS statement.

Having CONFLICTS for each variant in the other variant causes recursive dependency error, even though the two variants do conflict with each other. This commit removes one of the CONFLICT lines.
Build now completes without error on SDK.

Signed-off-by: Rob White <rob@blue-wave.net>

libs/libmicrohttpd/Makefile

@@ -34,7 +34,6 @@ define Package/libmicrohttpd-no-ssl
 $(call Package/libmicrohttpd/default)
   VARIANT:=nossl
   DEFAULT_VARIANT:=1
-  CONFLICTS:=libmicrohttpd-ssl
   PROVIDES:=libmicrohttpd
 endef