Merge pull request #435 from sieben/redundant_type_cast

src/main/java/net/floodlightcontroller/hub/Hub.java

...a/net/floodlightcontroller/loadbalancer/LoadBalancer.java

src/main/java/net/floodlightcontroller/packet/Ethernet.java

src/main/java/net/floodlightcontroller/routing/Link.java

...oodlightcontroller/staticflowentry/StaticFlowEntries.java

...et/floodlightcontroller/storage/nosql/NoSqlResultSet.java

src/main/java/org/openflow/protocol/OFFlowMod.java

src/main/java/org/openflow/protocol/OFFlowRemoved.java

...va/org/sdnplatform/sync/internal/AbstractStoreClient.java