Cleanup asserts and remove usage of deprecated data structure.

Test: compile only
Change-Id: I9e9f1a3fb37db043d76a98a9568679e7e531e283
diff --git a/libs/hwui/SkiaCanvas.cpp b/libs/hwui/SkiaCanvas.cpp
index 7c97e77..5e21dfc 100644
--- a/libs/hwui/SkiaCanvas.cpp
+++ b/libs/hwui/SkiaCanvas.cpp
@@ -738,7 +738,7 @@
 void SkiaCanvas::drawLayoutOnPath(const minikin::Layout& layout, float hOffset, float vOffset,
         const SkPaint& paint, const SkPath& path, size_t start, size_t end) {
     const int N = end - start;
-    SkAutoSMalloc<1024> storage(N * (sizeof(uint16_t) + sizeof(SkRSXform)));
+    SkAutoSTMalloc<1024, uint8_t> storage(N * (sizeof(uint16_t) + sizeof(SkRSXform)));
     SkRSXform* xform = (SkRSXform*)storage.get();
     uint16_t* glyphs = (uint16_t*)(xform + N);
     SkPathMeasure meas(path, false);