Remove duplicate logic

cloud/amazon/s3.py

@@ -420,13 +420,7 @@ def main():
         if module.boolean(overwrite):
             overwrite = 'always'
         else:
-            overwrite='never'
+            overwrite = 'never'
-
-    if overwrite not in  ['always', 'never', 'different']:
-        if module.boolean(overwrite):
-            overwrite = 'always'
-        else:
-            overwrite='never'
 
     region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)