fix(@angular-devkit/build-angular): localized bundle generation fails in watch mode #22403
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Previously, we used to delete the temporary emitted JS and map files. However this causes a problem in watch mode, as Webpack will not re-emit these deleted files during the next incremental re-build.
With this change we now delete the entire temporary directory when the process is being terminated instead of a file by file bases.
Closes #22395