[webcrypto] Remove ifdef that is no longer needed.

content/child/webcrypto/webcrypto_impl.cc

Index: content/child/webcrypto/webcrypto_impl.cc
diff --git a/content/child/webcrypto/webcrypto_impl.cc b/content/child/webcrypto/webcrypto_impl.cc
index 3eed92769c9eab0fe1ae854a2ca48cb2169402f1..6c664b19b8de357b14b9c78a0d2195666765e12a 100644
--- a/content/child/webcrypto/webcrypto_impl.cc
+++ b/content/child/webcrypto/webcrypto_impl.cc
@@ -457,10 +457,6 @@ void DoImportKey(scoped_ptr<ImportKeyState> passed_state) {
 }
 
 void DoExportKeyReply(scoped_ptr<ExportKeyState> state) {
-#ifndef WEBCRYPTO_RESULT_ACCEPTS_JSON
-  // TODO(eroman): Remove idfef once blink rolls.
-  CompleteWithBufferOrError(state->status, state->buffer, &state->result);
-#else
   if (state->format != blink::WebCryptoKeyFormatJwk) {
     CompleteWithBufferOrError(state->status, state->buffer, &state->result);
     return;
@@ -474,7 +470,6 @@ void DoExportKeyReply(scoped_ptr<ExportKeyState> state) {
             webcrypto::Uint8VectorStart(&state->buffer)),
         state->buffer.size());
   }
-#endif
 }
 
 void DoExportKey(scoped_ptr<ExportKeyState> passed_state) {