Remove `no_dead_strip` marks #3114

Job	Run time
Check MSRV	52s
Check formatting	7s
Lint macOS x86_64	2m 27s
Lint iOS ARMv7s	2m 18s
Lint visionOS Aarch64 simulator	2m 22s
Lint GNUStep + exceptions	1m 20s
Lint header-translator	29s
Lint test-assembly	26s
Test macOS 15 Aarch64	1m 18s
Assembly tests	50s
Verify header translator output	51s
Check framework features	0s
${{ ((matrix.test && 'Test') \|\| 'Build') }} ${{ matrix.name }}	0s
Test Compiler-RT	26s
Test GNUStep with libobjc2 v1.9	1m 14s
Compiler UI	47s
Test GNUStep with libobjc2 v2.0	1m 12s
Test on iOS simulator w. dinghy	0s
Test GNUStep with libobjc2 v2.1 on nightly	52s
Test GNUStep 32bit	1m 0s
	18m 51s

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