libarchive: correct upstream version check

File index works now:
http://libarchive.org/downloads/

(From OE-Core rev: 11dfb88badcbb0daf3744eb3ab82bf9290ae5981)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/libarchive/libarchive_3.7.9.bb

@@ -31,8 +31,6 @@ EXTRA_OECONF += "--enable-largefile --without-iconv"
 
 SRC_URI = "https://libarchive.org/downloads/libarchive-${PV}.tar.gz"
 
-UPSTREAM_CHECK_URI = "http://libarchive.org/"
-
 SRC_URI[sha256sum] = "aa90732c5a6bdda52fda2ad468ac98d75be981c15dde263d7b5cf6af66fd009f"
 
 inherit autotools update-alternatives pkgconfig