Clean up actions

Looks like #33 is sort of obsolete already, so I'm going to just
say that this fixes #33.

src/core/action.ts

@@ -2,16 +2,8 @@ import { ViewData } from '../ui/ui-helpers';
 import { Point } from '../util/types';
 import { SceneState } from './state';
 
-// There are UiActions, which might have different behavior depending
-// on view state, and other GameActions, which should be treated
-// uniformly.
-
 export type GameAction =
   | { t: 'none' }
-  | UiAction;
-
-// I think I want to migrate some of these up to GameAction
-export type UiAction =
   | { t: 'key', code: string }
   | { t: 'mouseDown', button: number, p: Point, mods: Set<string> }
   | { t: 'mouseUp', p: Point }

src/core/reduce.ts

@@ -344,5 +344,4 @@ export function reduce(scState: SceneState, action: Action): effectful.Result<Sc
       }
   }
 
-
 }