Don't use LOG() from platform.

src/platform-freebsd.cc

Index: src/platform-freebsd.cc
diff --git a/src/platform-freebsd.cc b/src/platform-freebsd.cc
index 084e54b3c8579d9d078d5db447bdac795c874efb..0193fcc7e46c5bd37cbf3cbe898c0aabe9a9fa5c 100644
--- a/src/platform-freebsd.cc
+++ b/src/platform-freebsd.cc
@@ -62,10 +62,7 @@ void* OS::Allocate(const size_t requested,
   int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0);
   void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0);
 
-  if (mbase == MAP_FAILED) {
-    LOG(Isolate::Current(), StringEvent("OS::Allocate", "mmap failed"));
-    return NULL;
-  }
+  if (mbase == MAP_FAILED) return NULL;
   *allocated = msize;
   return mbase;
 }