Excluded unused libburn source module crc.c from GNU xorriso tarball

libisoburn/trunk/xorriso/make_xorriso_standalone.sh

@@ -213,6 +213,10 @@ copy_files libburn/*.[ch] "$lone_dir"/libburn
 copy_files COPYRIGHT "$lone_dir"/libburn
 cat CONTRIBUTORS >>"$lone_dir"/CONTRIBUTORS
 
+# Delete a source module of yet unclear ancestry.
+# The build process will avoid to use it.
+rm "$lone_dir"/libburn/crc.c
+
 
 # To get a common version.h 
 cat version.h.in >> "$lone_dir"/version.h.in