[1.8.x] Removed bin/unique-messages.py

This script is no longer used according to Claude, our translations manager.

Backport of eb45a29565 from master

django/bin/unique-messages.py

@@ -1,30 +0,0 @@
-#!/usr/bin/env python
-
-import os
-import sys
-
-
-def unique_messages():
-    basedir = None
-
-    if os.path.isdir(os.path.join('conf', 'locale')):
-        basedir = os.path.abspath(os.path.join('conf', 'locale'))
-    elif os.path.isdir('locale'):
-        basedir = os.path.abspath('locale')
-    else:
-        print("This script should be run from the Django Git tree or your project or app tree.")
-        sys.exit(1)
-
-    for (dirpath, dirnames, filenames) in os.walk(basedir):
-        for f in filenames:
-            if f.endswith('.po'):
-                sys.stderr.write('processing file %s in %s\n' % (f, dirpath))
-                pf = os.path.splitext(os.path.join(dirpath, f))[0]
-                cmd = 'msguniq "%s.po"' % pf
-                stdout = os.popen(cmd)
-                msg = stdout.read()
-                with open('%s.po' % pf, 'w') as fp:
-                    fp.write(msg)
-
-if __name__ == "__main__":
-    unique_messages()