Move negative action tests to right place

Negative tests of server should be written on test_servers_negative.py,
but some negative tests are written on positive tests file, then that
would mislead developers who add new negative tests.

This patch moves these negative tests to a right place.

Change-Id: If3ddb2a0a5d27a87d610c6d8e7783d400fd32606
2 files changed