Remove unused env import in transition.rs

[halcyonet]

Description

This PR addresses issue #541 by removing the unused env import from the std module in the cargo-test-fuzz/src/bin/cargo_test_fuzz/transition.rs file.

Changes Made

Modified line 5 from:

use std::{env, ffi::OsStr};

To:

use std::ffi::OsStr;

Verification

• Compiled the project to confirm that no compilation errors were introduced
• Ran existing tests to ensure functionality remains unaffected
• Verified that no "unused import" warnings are generated after the change

Issue Fixed

This PR resolves issue #541 by removing the unused import, improving code quality and reducing unnecessary imports.

Additional Notes

The env import was previously declared but not referenced anywhere in the file. Removing it maintains the same functionality while improving code cleanliness.

[CLAassistant]

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