remove random movement test

[energy-in-joles]

No description provided.

[Copilot]

Pull request overview

This pull request removes a simulator-driven motion-planning test that previously exercised random multi-robot movement and collision avoidance behavior.

Changes:

• Deleted random_movement_test.py, which ran a multi-robot random-target navigation scenario and asserted no collisions plus target completion.

Comments suppressed due to low confidence (1)

utama_core/tests/motion_planning/random_movement_test.py:1

• This PR deletes the only test that exercises RandomMovementStrategy (and its collision-avoidance behavior under repeated random target selection). After this change, the strategy remains in the codebase (e.g. utama_core/strategy/examples/motion_planning/random_movement_strategy.py and main.py) but has no test coverage, so regressions in random-target generation / callback invocation / multi-robot separation won’t be caught by CI.

If this test was removed due to flakiness or runtime, consider keeping it but marking it as an integration/slow test (so it’s opt-in), or replacing it with a smaller deterministic unit test for the strategy’s target selection + on_target_reached callback behavior.