[Sheriff] Revert "Let SetEntropySource() fail if called after V8::Initialize()."

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index f1ecbf06d3fc242717df85cc486882fc1ffd315f..3030b8a1e03879085f6d801682c8ac4839136d3a 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -4942,13 +4942,6 @@ bool v8::V8::Initialize() {
 
 
 void v8::V8::SetEntropySource(EntropySource entropy_source) {
-  // The entropy source must be set before the library is initialized,
-  // as otherwise not all random number generators will pick up the
-  // entropy source and will fall back to weak entropy instead.
-  i::Isolate* isolate = i::Isolate::UncheckedCurrent();
-  ApiCheck(isolate != NULL && isolate->IsInitialized(),
-           "v8::V8::SetEntropySource",
-           "Cannot set entropy source once V8 is initialized.");
   i::RandomNumberGenerator::SetEntropySource(entropy_source);
 }