Slight improvement in removeTasksCorrespondingToStorage

[Algunenano]

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Changelog entry (a user-readable short description of the changes that goes into CHANGELOG.md):

Avoid doing an extra loop. Should have minimal impact but maybe it helps

References #93620

Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

[clickhouse-gh]

Workflow [PR], commit [e052b47]

Summary: ❌

job_name	test_name	status	info	comment
Integration tests (amd_binary, 1/5)		failure
	test_peak_memory_usage/test.py::test_clickhouse_client_max_peak_memory_usage_distributed	FAIL	cidb, issue	ISSUE EXISTS
BuzzHouse (amd_debug)		failure
	Logical error: 'Inconsistent AST formatting: the query: (STID: 1941-1bfa)	FAIL	cidb, issue	ISSUE EXISTS
Performance Comparison (amd_release, master_head, 1/6)		failure
	Check Results	failure		IGNORED