Remove unnecessary variable initializaiton

5abc69f added new rescue behavior for the Solaris mountpoint resovler
but, in doing so, also added unnecessary variable initialization. This
commit removes declaring the mount variable as an empty hash.

lib/facter/resolvers/solaris/mountpoints.rb

@@ -33,7 +33,6 @@ def read_mounts(fact_name)
 
                 next if fs.mount_type == 'autofs'
 
-                mounts = {}
                 device = fs.name
                 filesystem = fs.mount_type
                 path = fs.mount_point