Fix warnings for set, but not used.

Author: dgarske

src/tpm2.c

@@ -275,6 +275,8 @@ static int TPM2_CommandProcess(TPM2_CTX* ctx, TPM2_Packet* packet,
 #endif
 
     (void)cmdCode;
+    (void)i;
+
     return rc;
 }
 

src/tpm2_packet.c

@@ -391,7 +391,7 @@ TPM_ST TPM2_Packet_AppendAuth(TPM2_Packet* packet, TPM2_CTX* ctx, CmdInfo_t* inf
             }
         }
         /* based on position difference places calculated size at marked U32 above */
-        i = TPM2_Packet_PlaceU32(packet, authTotalSzPos);
+        (void)TPM2_Packet_PlaceU32(packet, authTotalSzPos);
         st = TPM_ST_SESSIONS;
     }
     return st;