clean up render_pdfs:

gyp/tools.gyp

 # GYP file to build various tools.
 #
 # To build on Linux:
 #  ./gyp_skia tools.gyp && make tools
 #
 {
   'includes': [
     'apptype_console.gypi',
   ],
   'targets': [
@@ skipping 499 matching lines @@
             ],
           },
         ],
       ],
     },
     {
       'target_name': 'render_pdfs',
       'type': 'executable',
       'sources': [
         '../tools/render_pdfs_main.cpp',
-        '../tools/PdfRenderer.cpp',
-        '../tools/PdfRenderer.h',
       ],
       'include_dirs': [
         '../src/core',
         '../src/pipe/utils/',
         '../src/utils/',
       ],
       'dependencies': [
         'flags.gyp:flags',
         'pdf.gyp:pdf',
         'skia_lib.gyp:skia_lib',
@@ skipping 211 matching lines @@
               'flags.gyp:flags',
               'skia_lib.gyp:skia_lib',
               'resources',
             ],
           },
         ],
       },
     ],
   ],
 }