tools: remove useless assignment from configure.py

PR-URL: https://github.com/nodejs/node/pull/23200
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>

configure.py

@@ -1208,7 +1208,6 @@ def configure_static(o):
 
 
 def write(filename, data):
-  filename = filename
   print_verbose('creating %s' % filename)
   with open(filename, 'w+') as f:
     f.write(data)