Remove stale references to 'FFI' module.

lib/bsd/control.rb

@@ -42,7 +42,4 @@ module BSD::Control
     feature = available_features.find { _1.name == name.to_s }
     feature ? feature : raise(Error, "feature '#{name}' wasn't found")
   end
-
-  module FFI
-  end
 end

lib/bsd/control/feature.rb

@@ -52,7 +52,7 @@ module BSD::Control
     # @return [Boolean]
     #  Returns true on success.
     def sysdef!(path)
-      FFI.sysdef!(self, path)
+      # FIXME: implement.
     end
 
     # @endgroup
@@ -102,6 +102,7 @@ module BSD::Control
     end
 
     ##
+    # @!method status(path)
     #   @param [String] path
     #     The path to a file.
     #
@@ -110,12 +111,8 @@ module BSD::Control
     #
     #   @return [Symbol]
     #     Returns the status of a feature for a given file.
-    #  Status can be one of: `:conflict`, `:sysdef`, `:enabled`, `:disabled`.
-    def status(path)
-      FFI.status(self, path)
-    rescue Errno::ENOATTR
-      :sysdef
-    end
+    #     Status could be: `:unknown`, `:enabled`, `:disabled`,
+    #     `:sysdef`, or `:invalid`.
 
     # @endgroup