Remove NaCl support.

src/base/sys-info.cc

Index: src/base/sys-info.cc
diff --git a/src/base/sys-info.cc b/src/base/sys-info.cc
index a2dc6ab27fc7e8f649dfd2dcc005092ee404de09..1b6d39397e73346b2195fc5889375b1b574fd0b6 100644
--- a/src/base/sys-info.cc
+++ b/src/base/sys-info.cc
@@ -85,9 +85,6 @@ int64_t SysInfo::AmountOfPhysicalMemory() {
     return 0;
   }
   return static_cast<int64_t>(stat_buf.st_size);
-#elif V8_OS_NACL
-  // No support for _SC_PHYS_PAGES, assume 2GB.
-  return static_cast<int64_t>(1) << 31;
 #elif V8_OS_AIX
   int64_t result = sysconf(_SC_AIX_REALMEM);
   return static_cast<int64_t>(result) * 1024L;
@@ -104,7 +101,7 @@ int64_t SysInfo::AmountOfPhysicalMemory() {
 
 // static
 int64_t SysInfo::AmountOfVirtualMemory() {
-#if V8_OS_NACL || V8_OS_WIN
+#if V8_OS_WIN
   return 0;
 #elif V8_OS_POSIX
   struct rlimit rlim;