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Clean up TempDirForURL directories for --build-context and ADD git

Clean up TempDirForURL directories for --build-context and ADD git: a task in rh-swe-bench (Harbor dataset). Title: Clean up TempDirForURL directories for --build-context and ADD git

The task

**Title:** Clean up TempDirForURL directories for --build-context and ADD git

Part of rounakbende/rh-swe-bench.