clean up: remove artificial mouse loc rejects

Now that "point" is local (viewer may have modified it for zooming or panning),
it no longer makes sense to check for out-of-bounds.

Change-Id: I8881f8b27be96973cb7687b25d93a0de5a22f5db
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/265218
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>

Author: reed-at-google

samplecode/Sample.cpp

@@ -65,9 +65,6 @@ bool Sample::mouse(SkPoint point, skui::InputState clickState, skui::ModifierKey
     switch (clickState) {
         case skui::InputState::kDown:
             fClick = nullptr;
-            if (point.x() < 0 || point.y() < 0 || point.x() >= fWidth || point.y() >= fHeight) {
-            //    return false;
-            }
             fClick.reset(this->onFindClickHandler(point.x(), point.y(), modifierKeys));
             if (!fClick) {
                 return false;