NaCl cleanup: Remove unneeded definition of ResolveFileToken()

components/nacl/loader/nacl_validation_query.h

Index: components/nacl/loader/nacl_validation_query.h
diff --git a/components/nacl/loader/nacl_validation_query.h b/components/nacl/loader/nacl_validation_query.h
index 19ca8b9bda2f4baccb6d8fe508bdead5086179af..1cf67dc7caf5ea6a764b843baf3ad0213b708031 100644
--- a/components/nacl/loader/nacl_validation_query.h
+++ b/components/nacl/loader/nacl_validation_query.h
@@ -11,7 +11,6 @@
 #include "base/strings/string_piece.h"
 #include "crypto/hmac.h"
 
-struct NaClFileToken;
 struct NaClValidationCache;
 class NaClValidationDB;
 class NaClValidationQuery;
@@ -24,9 +23,6 @@ class NaClValidationQueryContext {
 
   NaClValidationQuery* CreateQuery();
 
-  bool ResolveFileToken(struct NaClFileToken* file_token, int32* fd,
-                        std::string* path);
-
  private:
   NaClValidationDB* db_;