I will be the first one to jump into the deep end and open the can of worms.
Some Czech, East German and Norge re-finished rifles has a similar finish on their stocks. If your rifle is any of the pre-mentioned post-war modifications, I would certainly leave the current finish on the stock.
However, if an all matching rifle, some bolt MM, etc. where someone has decided to simply 'pimp shine' the stock - yes IMHO, I would remove the finish and I would not feel badly doing so. The rifle is no longer in 'an original state' so I wouldn't think that removing the finish would decrease the value and it would certainly improve the appearance of the wood. I would simply consider it a restoration vs. bubba job. If done properly, no one would even know that the stock had every had a shiny finish applied to it in the first place.
Regards