And you dont have to remove the solder on them just WARM it up (not burn) so that it will brake lose then do the other side (leaving the solder on the board) then when you go to put the new one on you can rewarm the solder.
Easyrecycle; One of the first rules of electronic repair is you suck the old solder off the board because you never want to reuse contaminated solder. It makes for a terrible solder joint, not smooth looking. Makes what they call in the business, cold solder joints! Just my opinion,,,