Revert autofix lint (facebook#19040)

I accidentally committed this since I had it on locally so I didn't have
to manually convert things to const.

However, this causes things to always pass lint since CI also runs this.

scripts/eslint/index.js

@@ -68,11 +68,10 @@ function runESLint({onlyChanged}) {
   if (typeof onlyChanged !== 'boolean') {
     throw new Error('Pass options.onlyChanged as a boolean.');
   }
-  const {
-    errorCount,
-    warningCount,
-    output,
-  } = runESLintOnFilesWithOptions(allPaths, onlyChanged, {fix: true});
+  const {errorCount, warningCount, output} = runESLintOnFilesWithOptions(
+    allPaths,
+    onlyChanged
+  );
   console.log(output);
   return errorCount === 0 && warningCount === 0;
 }