dont wrap setcontents() since it needs the translations applied by open()

fs/wrapfs.py

@@ -127,10 +127,6 @@ class WrapFS(FS):
         return self._file_wrap(f,mode)
 
     @rewrite_errors
-    def setcontents(self,path,contents):
-        self.wrapped_fs.setcontents(self._encode(path),contents)
-
-    @rewrite_errors
     def exists(self,path):
         return self.wrapped_fs.exists(self._encode(path))