LPS-47852 Remove unnecessary validations after LPS-49619 changes
LPS-47852 JUnit tests: Partial restore of LPS-24049 commit 85ad9a54045fc057caa49280c2a514cecac50b9b removed by commit 380f4ebe466bfbb8c20463d7715af16a66d25968
LPS-47852 Change validateFile to public
LPS-47852 New verify process checkDuplicateTitles
LPS-47852 Refactor duplicate code
LPS-47852 Reorder validateFile method
LPS-47852 Regen