Commented out the multi process test as it should be run in a separate gtest instance (if at all).

tapeserver/castor/server/CMakeLists.txt

@@ -8,10 +8,7 @@ add_library (castorserverunittests SHARED
   DaemonTest.cpp
   SmartCapTest.cpp
   ThreadingBlockingQTests.cpp
-
 # ThreadingMPTests.cpp is commented out because of errors caused by libust
-# ThreadingMPTests.cpp
-
   ThreadingMTTests.cpp
   ThreadingTests.cpp)