fix: Remove call to non-existing method in 28 and add missing use in test

Signed-off-by: Côme Chilliet <[email protected]>

Author: come-nc

lib/private/Share20/DefaultShareProvider.php

@@ -1345,7 +1345,6 @@ public function userDeletedFromGroup($uid, $gid) {
 				return;
 			}
 			$userGroups = $this->groupManager->getUserGroupIds($user);
-			$userGroups = array_diff($userGroups, $this->shareManager->shareWithGroupMembersOnlyExcludeGroupsList());
 
 			// Delete user shares received by the user from users in the group.
 			$userReceivedShares = $this->shareManager->getSharedWith($uid, IShare::TYPE_USER, null, -1);

tests/lib/Share20/DefaultShareProviderTest.php

@@ -39,6 +39,7 @@
 use OCP\IUserManager;
 use OCP\L10N\IFactory;
 use OCP\Mail\IMailer;
+use OCP\Share\IManager as IShareManager;
 use OCP\Share\IShare;
 use PHPUnit\Framework\MockObject\MockObject;