Remove scrim's ability to cancel closes

We want to add animations, and the cancel logic makes this
unnecessarily complex. It's not currently being used and we have
better alternatives that are less disruptive for users.

app/assets/javascripts/controllers/scrim_controller.js

@@ -63,18 +63,11 @@ export default class ScrimController extends Controller {
     this.openValue = true;
 
     // notify listeners of pending request
-    const event = this.dispatch("show", { bubbles: true, cancelable: true });
-
-    // if notification was cancelled, update request and abort
-    if (event.defaultPrevented) {
-      this.openValue = false;
-      request.preventDefault();
-      return;
-    }
+    this.dispatch("show", { bubbles: true });
 
     if (DEBUG) console.debug("show scrim");
 
-    // perform show updates
+    // update state, perform style updates
     this.#show(request.detail);
   }
 
@@ -87,14 +80,7 @@ export default class ScrimController extends Controller {
     this.openValue = false;
 
     // notify listeners of pending request
-    const event = this.dispatch("hide", { bubbles: true, cancelable: true });
-
-    // if notification was cancelled, update request and abort
-    if (event.defaultPrevented) {
-      this.openValue = true;
-      request.preventDefault();
-      return;
-    }
+    this.dispatch("hide", { bubbles: true });
 
     if (DEBUG) console.debug("hide scrim");
 
@@ -111,10 +97,6 @@ export default class ScrimController extends Controller {
       this.hide(event);
   }
 
-  disconnect() {
-    super.disconnect();
-  }
-
   /**
    * Clips body to viewport size and sets the z-index
    */