[turbofan] Remove the unused asm.js types from TypeCache.

src/compiler/js-native-context-specialization.h

Index: src/compiler/js-native-context-specialization.h
diff --git a/src/compiler/js-native-context-specialization.h b/src/compiler/js-native-context-specialization.h
index 549dc93575b831aaeffac4171e1b498ecfd24289..8ba5b65418a2f75d43f452fad6f7783e4c080b4f 100644
--- a/src/compiler/js-native-context-specialization.h
+++ b/src/compiler/js-native-context-specialization.h
@@ -16,8 +16,6 @@ namespace internal {
 class CompilationDependencies;
 class Factory;
 class FeedbackNexus;
-class TypeCache;
-
 
 namespace compiler {
 
@@ -30,7 +28,7 @@ class JSOperatorBuilder;
 class MachineOperatorBuilder;
 class PropertyAccessInfo;
 class SimplifiedOperatorBuilder;
-
+class TypeCache;
 
 // Specializes a given JSGraph to a given native context, potentially constant
 // folding some {LoadGlobal} nodes or strength reducing some {StoreGlobal}