Fix checksum test to check http status earlier

Due to a small change in the Webdav test steps, the response of the last
Webdav call is stored now, so we need to check the HTTP status earlier.

tests/integration/features/checksums.feature

@@ -148,8 +148,6 @@ Feature: checksums
     And user "user0" creates a new chunking upload with id "chunking-42"
     And user "user0" uploads new chunk file "2" with "BBBBB" to id "chunking-42"
     And user "user0" uploads new chunk file "3" with "CCCCC" to id "chunking-42" with checksum "SHA1:f005ba11"
-    And user "user0" uploads new chunk file "1" with "AAAAA" to id "chunking-42"
-    And user "user0" moves new chunk file with id "chunking-42" to "/myChunkedFile.txt"
     Then the HTTP status code should be "400"
 
   Scenario: Upload a file where checksum does not match