Fix import path in rewriteConvertersMap.js (#1135)

Author: Josh Goldberg

script/newConverter/rewriteConvertersMap.js

@@ -1,6 +1,5 @@
 const { promises: fs } = require("fs");
-const { EOL } = require("node:os");
-const path = require("path");
+const { EOL } = require("os");
 
 const filePath = "./src/converters/lintConfigs/rules/ruleConverters.ts";