perf: remove unused import from at-focus-controller (#2966) #10788

Job	Run time
Compile project (22)	1m 1s
Unit Tests (Web Test Runner)	1m 39s
SSR Tests (Playwright)	1m 39s
Lint files	40s
Compile project (24)	1m 2s
Verify that build runs on Windows	1m 49s
Validate successful build on main	3s
Publish Playwright Report	33s
	8m 26s

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