Remove special CheckEquals function for intptr_t on X64 platform.

src/checks.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 77 matching lines @@
                                         const char* unexpected_source,
                                         int unexpected,
                                         const char* value_source,
                                         int value) {
   if (unexpected == value) {
     V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n#   Value: %i",
              unexpected_source, value_source, value);
   }
 }
 
-#ifdef V8_TARGET_ARCH_X64
-// Helper function used by the CHECK_EQ function when given intptr_t
-// arguments.  Should not be called directly.
-static inline void CheckEqualsHelper(const char* file,
-                                     int line,
-                                     const char* expected_source,
-                                     intptr_t expected,
-                                     const char* value_source,
-                                     intptr_t value) {
-  if (expected != value) {
-    V8_Fatal(file, line,
-             "CHECK_EQ(%s, %s) failed\n#   Expected: %i\n#   Found: %i",
-             expected_source, value_source, expected, value);
-  }
-}
-
-
-// Helper function used by the CHECK_NE function when given intptr_t
-// arguments.  Should not be called directly.
-static inline void CheckNonEqualsHelper(const char* file,
-                                        int line,
-                                        const char* unexpected_source,
-                                        intptr_t unexpected,
-                                        const char* value_source,
-                                        intptr_t value) {
-  if (unexpected == value) {
-    V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n#   Value: %i",
-             unexpected_source, value_source, value);
-  }
-}
-#endif  // V8_TARGET_ARCH_X64
-
 
 // Helper function used by the CHECK function when given string
 // arguments.  Should not be called directly.
 static inline void CheckEqualsHelper(const char* file,
                                      int line,
                                      const char* expected_source,
                                      const char* expected,
                                      const char* value_source,
                                      const char* value) {
   if (strcmp(expected, value) != 0) {
@@ skipping 146 matching lines @@
 
 
 #define ASSERT_TAG_ALIGNED(address) \
   ASSERT((reinterpret_cast<intptr_t>(address) & kHeapObjectTagMask) == 0)
 
 #define ASSERT_SIZE_TAG_ALIGNED(size) ASSERT((size & kHeapObjectTagMask) == 0)
 
 #define ASSERT_NOT_NULL(p)  ASSERT_NE(NULL, p)
 
 #endif  // V8_CHECKS_H_