Fix a bug that would cause subzero to fail when --threads=0.

src/IceTranslator.h

Index: src/IceTranslator.h
diff --git a/src/IceTranslator.h b/src/IceTranslator.h
index adddc32c8d0b428bbd22d4824d9d0c49284d3c1c..0f7f9d7cd53fde19bbcfab832fdda6a60fdd34ab 100644
--- a/src/IceTranslator.h
+++ b/src/IceTranslator.h
@@ -48,13 +48,6 @@ public:
   /// Takes ownership of Func.
   void translateFcn(std::unique_ptr<Cfg> Func);
 
-  /// Emits the constant pool.
-  void emitConstants();
-
-  /// If there was an error during bitcode reading/parsing, copy the
-  /// error code into the GlobalContext.
-  void transferErrorCode() const;
-
   /// Lowers the given list of global addresses to target. Generates
   /// list of corresponding variable declarations.
   void