Revert "update copy_coldstart_files.sh with shebang"

This reverts commit d805336.

util/gdas_init/copy_coldstart_files.sh

@@ -1,6 +1,4 @@
-#!/bin/bash
-
-# Copy files from the working directory to the
+opy files from the working directory to the
 # output directory.
 
 copy_data()