Revert "Rename kIs64BitArch with kRequiresCodeRange."

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index f3f0788fc5cf7d0b1663969f0bcc7db516bf383a..0c24c6e59dea386a4fbbd82f1fccf6315e0d69a4 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -153,14 +153,12 @@ const int kDoubleSizeLog2 = 3;
 const int kPointerSizeLog2 = 3;
 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF);
-const bool kRequiresCodeRange = true;
-const int kMaximalCodeRangeSize = 512 * MB;
+const bool kIs64BitArch = true;
 #else
 const int kPointerSizeLog2 = 2;
 const intptr_t kIntptrSignBit = 0x80000000;
 const uintptr_t kUintptrAllBitsSet = 0xFFFFFFFFu;
-const bool kRequiresCodeRange = false;
-const int kMaximalCodeRangeSize = 0 * MB;
+const bool kIs64BitArch = false;
 #endif
 
 const int kBitsPerByte = 8;