Resolve "Remove code which will never be executed"

ReleaseNotes.md

catalogue/VerifySchemaCmd.hpp

cmdline/EosCtaStub.cpp

mediachanger/io.cpp

objectstore/AgentReference.cpp

objectstore/BackendRados.cpp

objectstore/RetrieveQueueFailedAlgorithms.cpp

objectstore/RetrieveQueueToReportAlgorithms.cpp

objectstore/RetrieveRequest.cpp

objectstore/Sorter.cpp

rdbms/ConnTest.cpp

scheduler/ArchiveJob.cpp

...r/tape/tapeserver/RAO/ConfigurableRAOAlgorithmFactory.cpp

tapeserver/castor/tape/tapeserver/RAO/SLTFRAOAlgorithm.cpp

tapeserver/castor/tape/tapeserver/daemon/DiskWriteTask.cpp

tapeserver/castor/tape/tapeserver/drive/DriveGeneric.cpp

...server/castor/tape/tapeserver/file/BasicReadWriteTest.cpp

tapeserver/daemon/ProcessManager.cpp

xroot_plugins/XrdSsiCtaServiceProvider.cpp