unzip: remove invalid UPSTREAM_CHECK_REGEX

After SRC_URI is changed to sourceforge, this UPSTREAM_CHECK_REGEX
become invalid, just remove it.

(From OE-Core rev: b5aec20d6139fb45501b383cd5cc2ef944cc6dd4)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/unzip/unzip_6.0.bb

@@ -38,9 +38,6 @@ UPSTREAM_VERSION_UNKNOWN = "1"
 
 SRC_URI[sha256sum] = "036d96991646d0449ed0aa952e4fbe21b476ce994abc276e49d30e686708bd37"
 
-# exclude version 5.5.2 which triggers a false positive
-UPSTREAM_CHECK_REGEX = "unzip(?P<pver>(?!552).+)\.tgz"
-
 S = "${UNPACKDIR}/unzip60"
 
 # Makefile uses CF_NOOPT instead of CFLAGS.  We lifted the values from