Remove unused dwFlags parameter in CPDFSDK_AnnotHandlerMgr::OnDraw and its calls.

fpdfsdk/formfiller/cffl_pushbutton.cpp

Index: fpdfsdk/formfiller/cffl_pushbutton.cpp
diff --git a/fpdfsdk/formfiller/cffl_pushbutton.cpp b/fpdfsdk/formfiller/cffl_pushbutton.cpp
index 001560836fb0205a670ff2bae19748fd2610bfd0..d8da65a3831ee2c45c2fa291e880e13e38f90eea 100644
--- a/fpdfsdk/formfiller/cffl_pushbutton.cpp
+++ b/fpdfsdk/formfiller/cffl_pushbutton.cpp
@@ -32,7 +32,6 @@ FX_BOOL CFFL_PushButton::OnChar(CPDFSDK_Annot* pAnnot,
 void CFFL_PushButton::OnDraw(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot,
                              CFX_RenderDevice* pDevice,
-                             CFX_Matrix* pUser2Device,
-                             uint32_t dwFlags) {
-  CFFL_Button::OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
+                             CFX_Matrix* pUser2Device) {
+  CFFL_Button::OnDraw(pPageView, pAnnot, pDevice, pUser2Device);
 }