Revert "Improve performance of renderer.pick() calls"

This reverts commit d989824.

Different approach will be used to fix regression regarding text bubbles

Author: GarboMuffin

src/scaffolding/scaffolding.js

@@ -133,14 +133,7 @@ class Scaffolding extends EventTarget {
 
   _startDragging (x, y) {
     if (this._draggingId) return;
-    const drawableId = this.renderer.pick(
-      x,
-      y,
-      1,
-      1,
-      // Disregard pen, video sensing, and other drawables added by extensions.
-      this.vm.runtime.targets.map(i => i.drawableID)
-    );
+    const drawableId = this.renderer.pick(x, y);
     if (drawableId === -1 || drawableId === false) return;
     const targetId = this.vm.getTargetIdForDrawableId(drawableId);
     if (targetId === null) return;