Remove redundant bounds
Remove redundant bounds

Ticki/serde,oli-obk/rust-serde,serde-rs/serde,eefriedman/serde,thorbenk/serde,erickt/serde,pcwalton/serde,Byron/serde,3Hren/serde,Hoverbear/serde,skade/serde,csmulhern/serde,JohnHeitmann/serde,tempbottle/serde,infinityb/serde,jmesmon/serde,sidred10/serde