remove custom relative_path_from

bin/ocran

@@ -57,16 +57,6 @@ module Ocran
       end
     end
 
-    # Compute the relative path from the 'src' path (directory) to 'tgt'
-    # (directory or file). Return the absolute path to 'tgt' if it can't
-    # be reached from 'src'.
-    def relative_path_from(other)
-      other = Pathname.new(other) unless other.is_a?(Pathname)
-      return other if drive_letter?&.casecmp(other.drive_letter?) != 0
-
-      super
-    end
-
     # Determines if 'src' is contained in 'tgt' (i.e. it is a subpath of
     # 'tgt'). Both must be absolute paths and not contain '..'
     def subpath?(base_directory)