[NaCl SDK] Switch ppapi_simple to C library

native_client_sdk/src/examples/benchmarks/example.dsc

 {
   'TOOLS': ['pnacl'],
   'SEARCH': [
     '.',
     '../../resources',
     '../../../../native_client/tests/benchmark',
     '../../../../native_client/src',
   ],
   'TARGETS': [
     {
       'NAME' : 'benchmarks',
       'TYPE' : 'main',
       'SOURCES' : [
         'benchmark_binarytrees_c.c',
         'benchmark_binarytrees.cc',
         'benchmark_chameneos_c.c',
         'benchmark_chameneos.cc',
         'benchmark_life.cc',
         'benchmark_nbody_c.c',
         'benchmark_nbody.cc',
         'framework.cc',
         'framework.h',
         'framework_ppapi.cc',
         'thread_pool.h',
         'thread_pool.cc'
       ],
-      'DEPS': ['ppapi_simple', 'nacl_io'],
-      'LIBS': ['ppapi_simple', 'nacl_io', 'sdk_util', 'ppapi_cpp', 'ppapi', 'pthread']
+      'DEPS': [],
+      'LIBS': ['sdk_util', 'ppapi_cpp', 'ppapi', 'pthread']
     }
   ],
   'DATA': [
     'example.js',
     'third_party/computer_language_benchmarks_game/binarytrees.c',
     'third_party/computer_language_benchmarks_game/chameneos.c',
     'third_party/computer_language_benchmarks_game/nbody.c',
   ],
   'DEST': 'examples/benchmarks',
   'NAME': 'benchmarks',
   'TITLE': "Benchmark Suite",
   'GROUP': 'Benchmarks'
 }