IVGCVSW-2817 Inherit SerializerVisitor from the ILayerVisitor interface class

 * Inherit SerializerVisitor from the ILayerVisitor interface 
   class rather than the base class

Change-Id: If531ec6bc3ae20bfff679fbf5f7535706eac17a2
Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
diff --git a/src/armnnSerializer/Serializer.hpp b/src/armnnSerializer/Serializer.hpp
index 4573bfd..c1a1305 100644
--- a/src/armnnSerializer/Serializer.hpp
+++ b/src/armnnSerializer/Serializer.hpp
@@ -16,7 +16,7 @@
 namespace armnnSerializer
 {
 
-class SerializerVisitor : public armnn::LayerVisitorBase<armnn::VisitorNoThrowPolicy>
+class SerializerVisitor : public armnn::ILayerVisitor
 {
 public:
     SerializerVisitor() : m_layerId(0) {}