refs #4123 Removing unused imports (using phpstorm Inspections>Fix feature)

core/API/DataTableManipulator.php

core/API/DocumentationGenerator.php

core/API/ResponseBuilder.php

core/Access.php

core/Archive.php

core/Archive/DataCollection.php

core/ArchiveProcessor.php

core/Controller.php

core/DataAccess/ArchiveSelector.php

core/DataAccess/ArchiveWriter.php

core/DataAccess/LogAggregator.php

core/DataArray.php

core/DataTable.php

core/DataTable/Filter.php

core/DataTable/Filter/AddColumnsProcessedMetricsGoal.php

core/DataTable/Filter/BeautifyRangeLabels.php

core/DataTable/Filter/BeautifyTimeRangeLabels.php

core/DataTable/Filter/CalculateEvolutionFilter.php

core/DataTable/Filter/ColumnCallbackAddColumnPercentage.php

core/DataTable/Filter/ColumnCallbackReplace.php