Merge to XFA: Cleanup: Do not check pointers before deleting them, part 2.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1195363002 .

(cherry picked from commit 21bf242a31eff79f754c5e9c3b41c52e33483bb0)

Review URL: https://codereview.chromium.org/1235753006 .
diff --git a/fpdfsdk/src/javascript/JS_Context.cpp b/fpdfsdk/src/javascript/JS_Context.cpp
index f41cf9e..e789657 100644
--- a/fpdfsdk/src/javascript/JS_Context.cpp
+++ b/fpdfsdk/src/javascript/JS_Context.cpp
@@ -24,11 +24,7 @@
 
 CJS_Context::~CJS_Context(void)
 {
-	if (m_pEventHandler)
-	{
-		delete m_pEventHandler;
-		m_pEventHandler = NULL;
-	}
+    delete m_pEventHandler;
 }
 
 CPDFSDK_Document* CJS_Context::GetReaderDocument()