Clean up code

...te-benchmarks/uc1-beam/.settings/org.eclipse.jdt.ui.prefs

...marks/uc1-beam/src/main/java/application/LogKeyValue.java

...s/uc1-beam/src/main/java/application/Uc1BeamPipeline.java

.../uc2-beam/src/main/java/application/StatsAggregation.java

...rks/uc2-beam/src/main/java/application/StatsToString.java

...rks/uc3-beam/src/main/java/application/MapTimeFormat.java

...s/uc3-beam/src/main/java/application/Uc3BeamPipeline.java

...plication/AggregatedActivePowerRecordEventTimePolicy.java

...c4-beam/src/main/java/application/AggregatedToActive.java

...arks/uc4-beam/src/main/java/application/FilterEvents.java

...uc4-beam/src/main/java/application/GenerateParentsFn.java

...uc4-beam/src/main/java/application/RecordAggregation.java

...c4-beam/src/main/java/application/SetIdForAggregated.java

...rks/uc4-beam/src/main/java/application/SetKeyToGroup.java

...s/uc4-beam/src/main/java/application/Uc4BeamPipeline.java

...eam/src/main/java/application/UpdateChildParentPairs.java