Revert of Make the CPDFXFA_App non-global

fpdfsdk/cpdfsdk_formfillenvironment.cpp

Index: fpdfsdk/cpdfsdk_formfillenvironment.cpp
diff --git a/fpdfsdk/cpdfsdk_formfillenvironment.cpp b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
index 9ad7c9fd71ede3dc980286fdcdbe6eef7f0b2ef4..71b83b26553cd9953ad740f40d4a0ff7ec24a980 100644
--- a/fpdfsdk/cpdfsdk_formfillenvironment.cpp
+++ b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
@@ -58,6 +58,11 @@
   // Those widgets may call things like KillTimer() as they are shutdown.
   m_pFormFiller.reset();
 
+#ifdef PDF_ENABLE_XFA
+  CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
+  if (pProvider->m_pFormFillEnvList.GetSize() == 0)
+    pProvider->SetJavaScriptInitialized(FALSE);
+#endif  // PDF_ENABLE_XFA
   if (m_pInfo && m_pInfo->Release)
     m_pInfo->Release(m_pInfo);
 }