Evict DanTup_tiler.test due to flakes (#8)

Experiencing the following flake:

```
| ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
| The following TestFailure object was thrown running a test:
|   Expected: one widget whose rasterized image matches golden image
| "test-maps/orientation/isometric_windows.png"
|   Actual: ?:<exactly one widget with type "RepaintBoundary" (ignoring offstage widgets):
| RepaintBoundary(renderObject: RenderRepaintBoundary#5401b)>
|    Which: does not match
```

Author: tvolkert