this is a differenet branch so this can be the commit message

tools/check-copyright-headers

@@ -1,40 +0,0 @@
-#!/usr/bin/env bash
-
-if pwd | grep -q tools; then
-  cd ..
-fi
-
-files=$(find iota/ \( -name '*.c' -o -name '*.h' \))
-files+=" $(find . -maxdepth 1 -type f)"
-
-ignore="README COPYING .clang-format"
-
-if [ -z "$files" ]; then
-  echo "No files found"
-  exit 0
-fi
-
-missing=""
-
-for file in $files; do
-  if echo "$ignore" | grep -qw "$(basename "$file")"; then
-    continue
-  fi
-  echo -ne "$file... "
-  if grep -q "Copyright (C)" "$file"; then
-    echo -e "\033[1;32mOK\033[0m"
-  else
-    echo -e "\033[0;31mFAIL\033[0m"
-    missing+="$file "
-  fi
-done
-
-if [ "$missing" = "" ]; then
-  echo -e "\033[1;32mAll checks pass.\033[0m"
-else
-  echo -e "\033[0;31mThe follwing files are missing copyright information.\033[0m"
-fi
-
-for file in $missing; do
-  echo " - $file"
-done