Some plants can withstand BRIEF, mild, bleach rinses. I know that aquatic plants can be dipped in mild bleach solutions and washed thoroughly, which kills of parasites before introduction to fishtanks.
NE herpetoculture supply has a moss caresheet that includes proceedure for bleaching mosses: http://neherpetoculture.com/mosses.htm
This solution sounds stronger than anything I would want to use for most leafy plants, though, and I really don't know what one would do about roots, which have to be kept moist, and I would be afraid to expose to bleach. Does anyone know how long chytrid can remain active in moist conditions without a host? (Since it's a fungus, I'm guessing that could be quite a while.)
I don't know if the leaves of plants qualify as dry enough for the to kill off chytrid on their own. Maybe, if you re-potted the plants and put them all in the sun for a few days, that would create a dry enough environment. I'm sure someone else will chime in.