HELSINKI (Reuters) - Finland has cancelled planned bond auctions for the remainder of the year and is on course to cut debt in 2018 for the first time in a decade, the finance ministry said on Sunday.Government debt was previously expected to increase by 1.3 billion euros (1.2 billion pounds) this year but according to an update by the state treasury it will come down by 0.9 billion euros to 104.9 billion euros."Finland will be able to reduce debt for the first time in 10 years... This temporary..