Remove an inlined ASSERT made obsolete by r3598.

Review URL: http://codereview.chromium.org/549035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ast.h

@@ -652,7 +652,6 @@ class TryCatchStatement: public TryStatement {
       : TryStatement(try_block),
         catch_var_(catch_var),
         catch_block_(catch_block) {
-    ASSERT(catch_var->AsVariableProxy() != NULL);
   }
 
   virtual void Accept(AstVisitor* v);