base: Remove the string logging from CHECK().

third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h

Index: third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h
diff --git a/third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h b/third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h
index d250bf4d33850d0a48507d10d1bcfd181cc2d853..83b39ac98e5b94f0bbbcc35def5a869bc13f8ac7 100644
--- a/third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h
+++ b/third_party/protobuf/src/google/protobuf/stubs/shared_ptr.h
@@ -428,11 +428,13 @@ class enable_shared_from_this {
   shared_ptr<T> shared_from_this() {
     // Behavior is undefined if the precondition isn't satisfied; we choose
     // to die with a CHECK failure.
-    CHECK(!weak_this_.expired()) << "No shared_ptr owns this object";
+    // No shared_ptr owns this object
+    CHECK(!weak_this_.expired());
     return weak_this_.lock();
   }
   shared_ptr<const T> shared_from_this() const {
-    CHECK(!weak_this_.expired()) << "No shared_ptr owns this object";
+    // No shared_ptr owns this object
+    CHECK(!weak_this_.expired());
     return weak_this_.lock();
   }
 
@@ -456,7 +458,8 @@ class enable_shared_from_this {
 template<typename T>
 void shared_ptr<T>::MaybeSetupWeakThis(enable_shared_from_this<T>* ptr) {
   if (ptr) {
-    CHECK(ptr->weak_this_.expired()) << "Object already owned by a shared_ptr";
+    // Object already owned by a shared_ptr
+    CHECK(ptr->weak_this_.expired());
     ptr->weak_this_ = *this;
   }
 }