Remove duplicate instance

Author: palas

bench/locli/locli.cabal

@@ -122,7 +122,7 @@ library
                       , ede
                       , extra
                       , filepath
-                      , fingertree
+                      , fingertree == 0.1.5.0
                       , hashable
                       , optparse-applicative-fork >= 0.18.1
                       , ouroboros-consensus