Don't use MEM_MOVE=true with SkTArrays of sk_sp

The code generated from std::move()ing them should be fine.

Bug: skia:8355
Change-Id: I63ef650b5fbcf9fb6356006190eae5e0977ae642
Reviewed-on: https://skia-review.googlesource.com/151982
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/tools/viewer/Viewer.cpp b/tools/viewer/Viewer.cpp
index 198d63d..3658185 100644
--- a/tools/viewer/Viewer.cpp
+++ b/tools/viewer/Viewer.cpp
@@ -544,7 +544,7 @@
 #endif
     };
 
-    SkTArray<sk_sp<Slide>, true> dirSlides;
+    SkTArray<sk_sp<Slide>> dirSlides;
 
     const auto addSlide = [&](const SkString& name,
                               const SkString& path,