fix: remove unnecessary env var

.env.template

@@ -6,7 +6,3 @@ RING_BELL=false
 
 # optional suffix to add just before the .user.js of the output file (for use with CI or build scripts to build the file as BetterYTM.min.user.js)
 # OUTFILE_SUFFIX=".min"
-
-# "production" enables minification for small file size, on "development" the code stays readable and debuggable - default is development
-# NOTE: this setting is only used when no `--env mode=xy` is passed to webpack
-# NODE_ENV="development"