misc: Remove redundant "use" imports

With the nightly toolchain (2024-02-18) cargo check will flag up
redundant imports either because they are pulled in by the prelude on
earlier match.

Remove those redundant imports.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

tpm/src/emulator.rs

@@ -9,7 +9,6 @@ use crate::{TPM_CRB_BUFFER_MAX, TPM_SUCCESS};
 use anyhow::anyhow;
 use libc::c_void;
 use libc::{sockaddr_storage, socklen_t};
-use std::convert::TryInto;
 use std::os::unix::io::RawFd;
 use std::path::Path;
 use std::{mem, ptr};

tpm/src/lib.rs

@@ -10,7 +10,6 @@ pub mod emulator;
 pub mod socket;
 
 use anyhow::anyhow;
-use std::convert::TryInto;
 use thiserror::Error;
 
 pub const TPM_CRB_BUFFER_MAX: usize = 3968; // 0x1_000 - 0x80