remove align16 calls in skhader context sizes. will handle this elsewhere as needed

src/effects/gradients/SkRadialGradient.cpp

Index: src/effects/gradients/SkRadialGradient.cpp
diff --git a/src/effects/gradients/SkRadialGradient.cpp b/src/effects/gradients/SkRadialGradient.cpp
index da4c6f241284bb995f03ba9daefd973a667cf459..5cd18834a933c0d8e7172e726ab2c1d67e0446b5 100644
--- a/src/effects/gradients/SkRadialGradient.cpp
+++ b/src/effects/gradients/SkRadialGradient.cpp
@@ -41,7 +41,7 @@ SkRadialGradient::SkRadialGradient(const SkPoint& center, SkScalar radius, const
 }
 
 size_t SkRadialGradient::onContextSize(const ContextRec&) const {
-    return SkAlign16(sizeof(RadialGradientContext));
+    return sizeof(RadialGradientContext);
 }
 
 SkShader::Context* SkRadialGradient::onCreateContext(const ContextRec& rec, void* storage) const {