code: public static Path removeEntropyMarkerIfPresent(FileSystem fs, Path path) {
  		final EntropyInjectingFileSystem efs = getEntropyFs(fs);
  		if (efs == null) {
  			return path;
  		}
  		else  {
  			try {
  				return resolveEntropy(path, efs, false);
  			}
  			catch (IOException e) {
  				// this should never happen, because the path was valid before and we only remove characters.
  				// rethrow to silence the compiler
  				throw new FlinkRuntimeException(e.getMessage(), e);
  			}
  		}
  	}
docs: Removes the entropy marker string from the path, if the given file system is an
  entropy-injecting file system (implements {@link EntropyInjectingFileSystem}) and
  the entropy marker key is present. Otherwise, this returns the path as is.
  
  @param path The path to filter.
  @return The path without the marker string.