Stop using the nacl_secure_random_init() which is deprecated.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3881

Review URL: https://codereview.chromium.org/345733007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278609 0039d316-1c4b-4281-b951-d872f2087c98

base/rand_util_nacl.cc

@@ -12,7 +12,6 @@
 namespace {
 
 void GetRandomBytes(void* output, size_t num_bytes) {
-  CHECK_EQ(0, nacl_secure_random_init());
   char* output_ptr = static_cast<char*>(output);
   while (num_bytes > 0) {
     size_t nread;