Changes to get rid of dependency on openssl in the dart VM.

lib/integers.cc

Index: lib/integers.cc
===================================================================
--- lib/integers.cc	(revision 4598)
+++ lib/integers.cc	(working copy)
@@ -105,22 +105,6 @@
       default:
         UNIMPLEMENTED();
     }
-  } else if (op1_int.IsSmi()) {
-    return IntegerBitOperation(kind, op2_int, op1_int);
-  } else if (op2_int.IsSmi()) {
-    Bigint& op1 = Bigint::Handle(AsBigint(op1_int));
-    Smi& op2 = Smi::Handle();
-    op2 ^= op2_int.raw();
-    switch (kind) {
-      case Token::kBIT_AND:
-        return BigintOperations::BitAndWithSmi(op1, op2);
-      case Token::kBIT_OR:
-        return BigintOperations::BitOrWithSmi(op1, op2);
-      case Token::kBIT_XOR:
-        return BigintOperations::BitXorWithSmi(op1, op2);
-      default:
-        UNIMPLEMENTED();
-    }
   } else {
     Bigint& op1 = Bigint::Handle(AsBigint(op1_int));
     Bigint& op2 = Bigint::Handle(AsBigint(op2_int));