Update JaxB to version 2.3.1 and remove outdated comments related to JaxB version.
Update JaxB to version 2.3.1 and remove outdated comments related to JaxB version.

apache/camel,nicolaferraro/camel,tdiesler/camel,mcollovati/camel,christophd/camel,tadayosi/camel,DariusX/camel,apache/camel,nikhilvibhav/camel,pmoerenhout/camel,gnodet/camel,onders86/camel,gnodet/camel,adessaigne/camel,objectiser/camel,nicolaferraro/camel,tadayosi/camel,onders86/camel,DariusX/camel,zregvart/camel,Fabryprog/camel,adessaigne/camel,pax95/camel,CodeSmell/camel,pax95/camel,punkhorn/camel-upstream,adessaigne/camel,kevinearls/camel,apache/camel,Fabryprog/camel,pmoerenhout/camel,nikhilvibhav/camel,tdiesler/camel,christophd/camel,tdiesler/camel,alvinkwekel/camel,mcollovati/camel,davidkarlsen/camel,cunningt/camel,davidkarlsen/camel,ullgren/camel,zregvart/camel,onders86/camel,pax95/camel,adessaigne/camel,christophd/camel,davidkarlsen/camel,CodeSmell/camel,tdiesler/camel,ullgren/camel,pmoerenhout/camel,apache/camel,tadayosi/camel,tdiesler/camel,onders86/camel,gnodet/camel,punkhorn/camel-upstream,cunningt/camel,nicolaferraro/camel,kevinearls/camel,tadayosi/camel,ullgren/camel,punkhorn/camel-upstream,DariusX/camel,alvinkwekel/camel,cunningt/camel,onders86/camel,christophd/camel,cunningt/camel,cunningt/camel,alvinkwekel/camel,zregvart/camel,Fabryprog/camel,punkhorn/camel-upstream,mcollovati/camel,nikhilvibhav/camel,adessaigne/camel,davidkarlsen/camel,gnodet/camel,christophd/camel,apache/camel,pax95/camel,pmoerenhout/camel,objectiser/camel,gnodet/camel,alvinkwekel/camel,pax95/camel,adessaigne/camel,nikhilvibhav/camel,kevinearls/camel,kevinearls/camel,zregvart/camel,pmoerenhout/camel,onders86/camel,objectiser/camel,kevinearls/camel,pmoerenhout/camel,tadayosi/camel,pax95/camel,DariusX/camel,kevinearls/camel,tdiesler/camel,christophd/camel,Fabryprog/camel,tadayosi/camel,objectiser/camel,apache/camel,cunningt/camel,ullgren/camel,CodeSmell/camel,mcollovati/camel,CodeSmell/camel,nicolaferraro/camel