Delete even more unused views code

Bug: skia:
Change-Id: I41480aa89dfcd8cb7e016e477cbabe354f35ce8a
Reviewed-on: https://skia-review.googlesource.com/75480
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/samplecode/SampleAtlas.cpp b/samplecode/SampleAtlas.cpp
index f89b37d..bb42fc1 100644
--- a/samplecode/SampleAtlas.cpp
+++ b/samplecode/SampleAtlas.cpp
@@ -223,7 +223,7 @@
         SkUnichar uni;
         if (SampleCode::CharQ(*evt, &uni)) {
             switch (uni) {
-                case 'C': fDrawable->toggleUseColors(); this->inval(nullptr); return true;
+                case 'C': fDrawable->toggleUseColors(); return true;
                 default: break;
             }
         }