KEYS: trusted: Remove set but not used variable 'keyhndl'

Fixes gcc '-Wunused-but-set-variable' warning:

security/keys/trusted-keys/trusted_tpm1.c: In function tpm_unseal:
security/keys/trusted-keys/trusted_tpm1.c:588:11: warning: variable keyhndl set but not used [-Wunused-but-set-variable]

Fixes: 00aa975bd031 ("KEYS: trusted: Create trusted keys subsystem")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

security/keys/trusted-keys/trusted_tpm1.c

@@ -585,7 +585,6 @@ static int tpm_unseal(struct tpm_buf *tb,
 	uint32_t authhandle2 = 0;
 	unsigned char cont = 0;
 	uint32_t ordinal;
-	uint32_t keyhndl;
 	int ret;
 
 	/* sessions for unsealing key and data */
@@ -601,7 +600,6 @@ static int tpm_unseal(struct tpm_buf *tb,
 	}
 
 	ordinal = htonl(TPM_ORD_UNSEAL);
-	keyhndl = htonl(SRKHANDLE);
 	ret = tpm_get_random(chip, nonceodd, TPM_NONCE_SIZE);
 	if (ret != TPM_NONCE_SIZE) {
 		pr_info("trusted_key: tpm_get_random failed (%d)\n", ret);