Remove ExternalArray, derived types, and element kinds

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 5d802bd7ac9bab6f3f072442d0139963bcdf952b..637fcc34a0c4d83e16d85dc1d08b028eacb302da 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -819,7 +819,6 @@ void StoreElementStub::Generate(MacroAssembler* masm) {
     case FAST_DOUBLE_ELEMENTS:
     case FAST_HOLEY_DOUBLE_ELEMENTS:
 #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \
-    case EXTERNAL_##TYPE##_ELEMENTS:                    \
     case TYPE##_ELEMENTS:
 
     TYPED_ARRAYS(TYPED_ARRAY_CASE)