Revert accepting shares to using the middleware in resharing test

Idea was to use the web ui for accepting the share, but this fails on
mobile resolutions where the status column doesn't fit on the screen.

tests/acceptance/features/webUIRestrictSharing/restrictReSharing.feature

@@ -25,9 +25,8 @@ Feature: restrict resharing
  And user "Brian" has created folder "simple-folder" in the server
  And user "Brian" has uploaded file "lorem.txt" to "simple-folder/lorem.txt" in the server
  And user "Brian" has shared folder "simple-folder" with user "Alice" in the server
+ And user "Alice" has accepted the share "Shares/simple-folder" offered by user "Brian" in the server
  When user "Alice" logs in using the webUI
- And the user has browsed to the shared-with-me page
- And the user accepts share "simple-folder" offered by user "Brian Murphy" using the webUI
  And the user browses to the files page
  And the user opens folder "Shares" using the webUI
  When the user marks file "simple-folder" as favorite using the webUI
@@ -38,6 +37,7 @@ Feature: restrict resharing
 
 
 
+
  @smokeTest
  Scenario: disable resharing and check if the received resource from group share can be reshared
  Given the setting "shareapi_allow_resharing" of app "core" has been set to "no" in the server