macro processor: remove unnecessary function

src/macro/Expressions.cc

@@ -565,12 +565,7 @@ Array::eval()
       increment = nullptr;
       range2 = nullptr;
     }
-  return evalArray();
-}
 
-BaseTypePtr
-Array::evalArray()
-{
   vector<ExpressionPtr> retval;
   for (const auto & it : arr)
     retval.emplace_back(it->eval());

src/macro/Expressions.hh

@@ -346,8 +346,6 @@ namespace macro
     string to_string() const noexcept override;
     void print(ostream &output, bool matlab_output = false) const noexcept override;
     BaseTypePtr eval() override;
-  private:
-    BaseTypePtr evalArray();
   public:
     inline size_t size() const { return arr.size(); }
     inline vector<ExpressionPtr> getValue() const { return arr; }