revert: feat: Allow to skip submitting empty values in form data (#5830)

This reverts commit b9b32c9c93.

Refs #6203 #5830

src/core/plugins/oas3/selectors.js

@@ -1,4 +1,4 @@
-import { OrderedMap, Map } from "immutable"
+import { OrderedMap } from "immutable"
 import { isOAS3 as isOAS3Helper } from "./helpers"
 
 
@@ -26,11 +26,6 @@ export const requestBodyValue = onlyOAS3((state, path, method) => {
   }
 )
 
-export const requestBodyInclusionSetting = onlyOAS3((state, path, method) => {
-    return state.getIn(["requestData", path, method, "bodyInclusion"]) || Map()
-  }
-)
-
 export const activeExamplesMember = onlyOAS3((state, path, method, type, name) => {
     return state.getIn(["examples", path, method, type, name, "activeExample"]) || null
   }