Removed unnecessary clean rules, since git-clean does the job very nicely.
Removed unnecessary clean rules, since git-clean does the job very nicely.

paulbdavis/ledger,ledger/ledger,duncanmortimer/ledger,ledger/ledger,paulbdavis/ledger,ledger/ledger,jwakely/ledger,paulbdavis/ledger,jwakely/ledger,duncanmortimer/ledger,jwakely/ledger,duncanmortimer/ledger,afh/ledger,paulbdavis/ledger,duncanmortimer/ledger,afh/ledger,paulbdavis/ledger,duncanmortimer/ledger,ledger/ledger,afh/ledger,paulbdavis/ledger,paulbdavis/ledger,duncanmortimer/ledger,jwakely/ledger,jwakely/ledger,jwakely/ledger,duncanmortimer/ledger,afh/ledger,afh/ledger,jwakely/ledger,ledger/ledger