crypto: marvell/octeontx - remove redundant NULL check

release_firmware() checks whether firmware pointer is NULL. Remove the redundant NULL check in release_tar_archive().
Signed-off-by: Yushan Zhou <katrinzhou@tencent.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c

@@ -345,7 +345,6 @@ static void release_tar_archive(struct tar_arch_info_t *tar_arch)
 		kfree(curr);
 	}
 
-	if (tar_arch->fw)
 	release_firmware(tar_arch->fw);
 	kfree(tar_arch);
 }