fix(integrity): remove unused variable

Drop X509ID variable inside the `if`, and use the same comparison that
is already in evm_enable.

Signed-off-by: Alberto Planas <aplanas@suse.com>

Author: aplanas

modules.d/98integrity/ima-keys-load.sh

@@ -26,9 +26,7 @@ load_x509_keys() {
             continue
         fi
 
-        # FIXME: X509ID unused?
-        # shellcheck disable=SC2034
-        if ! X509ID=$(evmctl import "${PUBKEY}" "${KEYRING_ID}"); then
+        if ! evmctl import "${PUBKEY}" "${KEYRING_ID}"; then
             info "integrity: IMA x509 cert not loaded on keyring: ${PUBKEY}"
         fi
     done