[cleanup] Mark unused files

devscripts/buildserver.py

@@ -1,3 +1,5 @@
+# UNUSED
+
 #!/usr/bin/python3
 
 import argparse

devscripts/release.sh

@@ -1,4 +1,5 @@
 # Unused
+
 #!/bin/bash
 
 # IMPORTANT: the following assumptions are made

devscripts/wine-py2exe.sh

@@ -1,3 +1,5 @@
+# UNUSED
+
 #!/bin/bash
 
 # Run with as parameter a setup.py that works in the current directory