[Coverity] Fix a bunch of partially-initialised structure warnings

renderdoc/replay/replay_output.cpp

@@ -39,6 +39,8 @@ ReplayOutput::ReplayOutput(ReplayRenderer *parent, void *w, OutputType type)
 
   m_pDevice = parent->GetDevice();
 
+  m_EventID = parent->m_EventID;
+
   m_OverlayResourceId = ResourceId();
 
   RDCEraseEl(m_RenderData);

renderdoc/replay/replay_renderer.h

@@ -72,15 +72,12 @@ private:
   void DisplayMesh();
 
   ReplayRenderer *m_pRenderer;
-  size_t m_ID;
 
   bool m_OverlayDirty;
   bool m_ForceOverlayRefresh;
 
   IReplayDriver *m_pDevice;
 
-  uint32_t m_TexWidth, m_TexHeight;
-
   struct OutputPair
   {
     ResourceId texture;