Cleanup flowconfig flags that matches the default

Summary: These flags are on by default. We are going to remove the ability to turn it off soon.

Reviewed By: alexmckenley

Differential Revision: D67436324

fbshipit-source-id: 41c85cf9e1878d4452de78646d21c77200127d96

tools/hermes-parser/js/.flowconfig

@@ -26,8 +26,6 @@ module.name_mapper='^prettier-plugin-hermes-parser$' -> '<PROJECT_ROOT>/prettier
 component_syntax=true
 enums=true
 
-experimental.natural_inference.exports.primitive_const=true
-
 [version]
 ^0.257.0