Remove old versions when updating package

WAPT/control

@@ -1,5 +1,5 @@
 package           : fws-git
-version           : 2.20.0-1
+version           : 2.20.0-2
 architecture      : all
 section           : base
 priority          : optional

setup.py

@@ -27,6 +27,9 @@ def update_package():
                 url = asset['browser_download_url']
                 print('Downloading Git %s for win%s from %s' % (version,arch,url))
                 wget(url,asset['name'])
+        for old in glob.glob(r'Git-*-%s-bit.exe' % arch):
+            if not old == 'Git-%s-%s-bit.exe' %(version,arch):
+                remove_file(old)
     if Version(version) > Version(control['version'].split('-',1)[0]):
         print('Updating control file with new version %s' % version)
         pe.version = version + '-0'