Remove obsolete RELEASE_ASSERT macro definition

BUG=596760

Review-Url: https://codereview.chromium.org/2885003003
Cr-Commit-Position: refs/heads/master@{#472274}

third_party/WebKit/Source/platform/wtf/Assertions.h

@@ -29,9 +29,6 @@
 
 // This file uses some GCC extensions, but it should be compatible with C++ and
 // Objective C++.
-//
-// For non-debug builds, everything is disabled by default, except for the
-// RELEASE_ASSERT family of macros.
 
 #include <stdarg.h>
 #include "base/allocator/partition_allocator/oom.h"
@@ -169,17 +166,6 @@ class WTF_EXPORT ScopedLogger {
 #define SECURITY_CHECK(condition) CHECK(condition)
 #endif
 
-// RELEASE_ASSERT
-// Use in places where failure of an assertion indicates a definite security
-// vulnerability from which execution must not continue even in a release build.
-// Please sure to file bugs for these failures using the security template:
-//    http://code.google.com/p/chromium/issues/entry?template=Security%20Bug
-#if defined(ADDRESS_SANITIZER)
-#define RELEASE_ASSERT(condition) SECURITY_CHECK(condition)
-#else
-#define RELEASE_ASSERT(condition) CHECK(condition)
-#endif
-
 // DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES
 // Allow equality comparisons of Objects by reference or pointer,
 // interchangeably.  This can be only used on types whose equality makes no