package/libssh: remove stale IGNORE_CVES

The entry was added in commit [1]. But since then the NVD database
updated the version end specifier.

This IGNORE_CVES entry is then no longer needed.

[1] 51b1e1daf5 package/libssh: ignore CVE-2025-5318

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libssh/libssh.mk

@@ -17,10 +17,6 @@ LIBSSH_CONF_OPTS = \
 	-DWITH_STACK_PROTECTOR=OFF \
 	-DWITH_EXAMPLES=OFF
 
-# NVD database is missing an upper version specifier.
-# This vulnerability only affects libssh<0.11.2
-LIBSSH_IGNORE_CVES = CVE-2025-5318
-
 ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
 LIBSSH_CONF_OPTS += -DWITH_STACK_CLASH_PROTECTION=OFF
 endif