fix!: remove deprecated `SourceCode` methods #14223

Job	Run time
Verify Files	2m 35s
Browser Test	2m 12s
Test (ubuntu-latest, 20.x)	3m 24s
Test (ubuntu-latest, 22.x)	3m 15s
Test (ubuntu-latest, 24.x, --experimental-transform-types)	3m 34s
Test pnpm Type Support	14s
Test (ubuntu-latest, 20.19.0)	3m 11s
Test Types of eslint	54s
Test (ubuntu-latest, 24.x)	3m 15s
Test Types of eslint-config-eslint	59s
Test Types of @eslint/js	1m 6s
Test (windows-latest, lts/*)	5m 15s
Test (ubuntu-latest, 25.x)	3m 10s
Test (macOS-latest, lts/*)	3m 39s
	36m 43s

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