Remove functionality of batching submission in client.map

[fjetter]

With the HLG layer this batching is now actually harmful since pretty much the exact same object is resubmitted over and over again

[github-actions]

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

    29 files  ± 0      29 suites  ±0   11h 58m 18s ⏱️ - 5m 55s
 4 087 tests + 3   3 971 ✅ + 9    112 💤 ±0  4 ❌  - 6 
55 286 runs  +42  52 842 ✅ +45  2 439 💤 +4  5 ❌  - 7 

For more details on these failures, see this check.

Results for commit a04a25f. ± Comparison against base commit ea46f72.

This pull request removes 1 and adds 4 tests. Note that renamed tests count towards both.

distributed.tests.test_scheduler ‑ test_deadlock_dependency_of_queued_released

distributed.tests.test_scheduler ‑ test_deadlock_dependency_of_queued_released_when_worker_removed[False]
distributed.tests.test_scheduler ‑ test_deadlock_dependency_of_queued_released_when_worker_removed[True]
distributed.tests.test_scheduler ‑ test_deadlock_dependency_of_queued_released_when_worker_replaced[False]
distributed.tests.test_scheduler ‑ test_deadlock_dependency_of_queued_released_when_worker_replaced[True]

♻️ This comment has been updated with latest results.