Removed busted tmp_dir option that was a bad idea to begin with.

library/files/synchronize

@@ -91,7 +91,6 @@ def main():
             src = dict(required=True),
             dest = dict(required=True),
             verbosity = dict(default=0),
-            tmp_dir = dict(default=None),
             delete = dict(default='no', type='bool'),
             private_key = dict(default=None),
             rsync_path = dict(default=None),
@@ -106,7 +105,6 @@ def main():
     private_key = module.params['private_key']
     rsync_path = module.params['rsync_path']
     rsync = module.params.get('local_rsync_path', 'rsync')
-    temp = os.path.dirname(os.path.realpath(__file__))
 
     cmd = '%s --archive --delay-updates --compress' % rsync
     if module.check_mode:
@@ -115,8 +113,6 @@ def main():
         cmd = '%s -%s' % (cmd, 'v' * int(verbosity))
     else:
         cmd = cmd + ' --quiet'
-    if temp:
-        cmd = cmd + ' --temp-dir ' + temp
     if delete:
         cmd = cmd + ' --delete-after'
     if private_key is None: