build-gnu.sh: remove workaround for timeout/yes #8082

Job	Run time
L10n/Locale Embedding - Ls Utility	1m 43s
L10n/Multi-call Binary Install Test (ubuntu-latest, feat_os_unix)	4m 56s
L10n/French Integration Test	2m 35s
L10n/Clap Error Localization Test	1m 51s
L10n/Fluent Syntax Check	19s
L10n/Multi-call Binary Install Test (macos-latest, feat_os_macos)	5m 11s
L10n/Installation Test (Make & Cargo) (macos-latest, feat_os_macos)	12m 12s
L10n/Build and Test (ubuntu-latest, feat_os_unix)	4m 34s
L10n/Embedded Locale Regression Test	1m 45s
L10n/Locale Embedding - Cargo Install	1m 3s
L10n/Installation Test (Make & Cargo) (ubuntu-latest, feat_os_unix)	7m 52s
L10n/Locale Embedding - Cat Utility	57s
L10n/Build and Test (macos-latest, feat_os_macos)	6m 52s
L10n/Build and Test (windows-latest, feat_os_windows)	9m 32s
L10n/Locale Embedding - Multicall Binary	3m 0s
L10n/Locale Support Verification	8m 32s
L10n/Locale Embedding Regression Test	2s
	1h 12m 56s

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