tpm/tpm_ftpm_tee: fix struct ftpm_tee_private documentation

The `state` member in `struct ftpm_tee_private` is in the documentation,
but it has never been in the implementation since the commit 09e5748
("tpm/tpm_ftpm_tee: A driver for firmware TPM running inside TEE") that
introduced it.

Remove it to have a match between documentation and implementation.

Signed-off-by: Stefano Garzarella <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Jarkko Sakkinen <[email protected]>

Author: stefano-garzarella

drivers/char/tpm/tpm_ftpm_tee.h

@@ -21,7 +21,6 @@
 /**
  * struct ftpm_tee_private - fTPM's private data
  * @chip:     struct tpm_chip instance registered with tpm framework.
- * @state:    internal state
  * @session:  fTPM TA session identifier.
  * @resp_len: cached response buffer length.
  * @resp_buf: cached response buffer.