Revert "don't close socket when pausing"

This reverts commit e4dbe77.

packages/@uppy/companion-client/src/RequestClient.js

@@ -87,7 +87,7 @@ export default class RequestClient {
     return stripSlash(companion && companion[host] ? companion[host] : host)
   }
 
-  async headers(emptyBody = false) {
+  async headers (emptyBody = false) {
     const defaultHeaders = {
       Accept: 'application/json',
       ...(emptyBody ? undefined : {
@@ -397,6 +397,15 @@ export default class RequestClient {
 
           isPaused = newPausedState
           if (socket) sendState()
+
+          if (newPausedState) {
+            // Remove this file from the queue so another file can start in its place.
+            socketAbortController?.abort?.() // close socket to free up the request for other uploads
+          } else {
+            // Resuming an upload should be queued, else you could pause and then
+            // resume a queued upload to make it skip the queue.
+            createWebsocket()
+          }
         }
 
         const onFileRemove = (targetFile) => {