No need to use harsh diesel fuels like gunscrubber. Just take off the grips, and pour some 91% Isopropyl Alcohol over the over-oiled areas, dry for a few seconds under a hair-dryer.
You may want to put a drop of Rem oil (et.al.) on the contact points after that.
I no longer take the side plates off my S&Ws. I pour liberal amounts of 91% Isopropyl Alcohol through the innards to take out flecks, dirt and junk. Don't use anything less than 91%, as it may have enough water to cause rust.
An old trick in my day was to mix a dab of gun grease (RIG?)with alcohol. The alcohol dries off and a thin grease film remains. We used this on motorcycle chains as well, before there were lithium chain lubes.
Actually, Dragon88's idea is best. Just wipe it down. Don't bother with alcohol unless you've just gone hog-wild.