vsock: Remove unused function declarations

These are never implemented since introduction in
commit d021c344051a ("VSOCK: Introduce VM Sockets")

Signed-off-by: Yue Haibing <[e-mail]>
Reviewed-by: Simon Horman <[e-mail]>
Reviewed-by: Stefano Garzarella <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

net/vmw_vsock/vmci_transport.h

···
 	spinlock_t lock; /* protects sk. */
 };
 
-int vmci_transport_register(void);
-void vmci_transport_unregister(void);
-
 int vmci_transport_send_wrote_bh(struct sockaddr_vm *dst,
 				 struct sockaddr_vm *src);
 int vmci_transport_send_read_bh(struct sockaddr_vm *dst,