Revert unintentional change

Author: bjorn3

build_sysroot/build_sysroot.sh

@@ -17,7 +17,7 @@ cd $(dirname "$0")
 
 # Cleanup for previous run
 #     v Clean target dir except for build scripts and incremental cache
-#rm -r target/*/{debug,release}/{build,deps,examples,libsysroot*,native} 2>/dev/null || true
+rm -r target/*/{debug,release}/{build,deps,examples,libsysroot*,native} 2>/dev/null || true
 
 # We expect the target dir in the default location. Guard against the user changing it.
 export CARGO_TARGET_DIR=target