Remove Platform::cryptographicallyRandomValues

sky/engine/testing/platform/platform_impl.cc

Index: sky/engine/testing/platform/platform_impl.cc
diff --git a/sky/engine/testing/platform/platform_impl.cc b/sky/engine/testing/platform/platform_impl.cc
index 6deb6089a732e421588eec151aec39324a44d8a0..683f864501804c9b290f320e8aa28178682f2e41 100644
--- a/sky/engine/testing/platform/platform_impl.cc
+++ b/sky/engine/testing/platform/platform_impl.cc
@@ -48,11 +48,6 @@ double PlatformImpl::monotonicallyIncreasingTime() {
       static_cast<double>(base::Time::kMicrosecondsPerSecond);
 }
 
-void PlatformImpl::cryptographicallyRandomValues(unsigned char* buffer,
-                                                      size_t length) {
-  base::RandBytes(buffer, length);
-}
-
 void PlatformImpl::setSharedTimerFiredFunction(void (*func)()) {
   shared_timer_func_ = func;
 }