Remove header files that only have includes.

fpdfsdk/src/fsdk_baseform.cpp

Index: fpdfsdk/src/fsdk_baseform.cpp
diff --git a/fpdfsdk/src/fsdk_baseform.cpp b/fpdfsdk/src/fsdk_baseform.cpp
index faab02af957560d3e4981988a0378768b5955997..ef821dc586f4a963e8c2d365cd9b31121cddb978 100644
--- a/fpdfsdk/src/fsdk_baseform.cpp
+++ b/fpdfsdk/src/fsdk_baseform.cpp
@@ -4,15 +4,17 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#include "fpdfsdk/include/fsdk_baseform.h"
+
 #include <memory>
 
 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
 #include "fpdfsdk/include/fsdk_actionhandler.h"
 #include "fpdfsdk/include/fsdk_baseannot.h"
-#include "fpdfsdk/include/fsdk_baseform.h"
 #include "fpdfsdk/include/fsdk_define.h"
 #include "fpdfsdk/include/fsdk_mgr.h"
 #include "fpdfsdk/include/javascript/IJavaScript.h"
+#include "fpdfsdk/include/pdfwindow/PWL_Utils.h"
 
 #define IsFloatZero(f) ((f) < 0.01 && (f) > -0.01)
 #define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
@@ -2134,8 +2136,6 @@ FX_COLORREF CPDFSDK_InterForm::GetHighlightColor(int nFieldType) {
   return m_aHighlightColor[nFieldType - 1];
 }
 
-/* ------------------------- CBA_AnnotIterator ------------------------- */
-
 CBA_AnnotIterator::CBA_AnnotIterator(CPDFSDK_PageView* pPageView,
                                      const CFX_ByteString& sType,
                                      const CFX_ByteString& sSubType)