[tflchef] Tidy GeneratedModelImpl (Samsung#13644)

This will tidy GeneratedModelImpl base() and size() methods.

ONE-DCO-1.0-Signed-off-by: SaeHie Park <saehie.park@gmail.com>

compiler/tflchef/core/src/ModelChef.cpp

@@ -914,18 +914,9 @@ class GeneratedModelImpl final : public tflchef::GeneratedModel::Impl
   }
 
 public:
-  const char *base(void) const override
-  {
-    // Return the base address of generated flatbuffer model
-    return reinterpret_cast<const char *>(_mc.get_buffer_pointer());
-  }
+  const char *base(void) const override { return _mc.get_buffer_pointer(); }
 
-public:
-  size_t size(void) const override
-  {
-    // Return the size of generated flatbuffer model
-    return _mc.get_size();
-  }
+  size_t size(void) const override { return _mc.get_size(); }
 
 public:
   ModelChef &model_chef(void) { return _mc; }