SkPDF: remove SK_NO_FLATE & dead code in SkPDFStream

include/config/SkUserConfig.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkUserConfig_DEFINED
@@ skipping 89 matching lines @@
  */
 //#define SK_DEFAULT_FONT_CACHE_LIMIT   (1024 * 1024)
 
 /*
  *  To specify the default size of the image cache, undefine this and set it to
  *  the desired value (in bytes). SkGraphics.h as a runtime API to set this
  *  value as well. If this is undefined, a built-in value will be used.
  */
 //#define SK_DEFAULT_IMAGE_CACHE_LIMIT (1024 * 1024)
 
-/*  If zlib is not available or you don't want to support flate compression
-    in PDF generation, define SK_NO_FLATE.
- */
-//#define SK_NO_FLATE
-
 /*  Define this to allow PDF scalars above 32k.  The PDF/A spec doesn't allow
     them, but modern PDF interpreters should handle them just fine.
  */
 //#define SK_ALLOW_LARGE_PDF_SCALARS
 
 /*  Define this to provide font subsetter in PDF generation.
  */
 //#define SK_SFNTLY_SUBSETTER "sfntly/subsetter/font_subsetter.h"
 
 /*  Define this to set the upper limit for text to support LCD. Values that
@@ skipping 34 matching lines @@
 /* The PDF generation code uses Path Ops to generate inverse fills and complex
  * clipping paths, but at this time, Path Ops is not release ready yet. So,
  * the code is hidden behind this #define guard. If you are feeling adventurous
  * and want the latest and greatest PDF generation code, uncomment the #define.
  * When Path Ops is release ready, the define guards and this user config
  * define should be removed entirely.
  */
 //#define SK_PDF_USE_PATHOPS
 
 #endif