Revert "Add methods to enable configuration of ResourceConstraints based on limits derived at runti…

src/platform-posix.cc

Index: src/platform-posix.cc
diff --git a/src/platform-posix.cc b/src/platform-posix.cc
index 797557d76f830cde51cb37943edce6f5d6f3504b..df15ee2e5b5ec6580431e38c0d5e6d5d53aa2590 100644
--- a/src/platform-posix.cc
+++ b/src/platform-posix.cc
@@ -100,48 +100,6 @@ intptr_t OS::MaxVirtualMemory() {
 }
 
 
-uint64_t OS::TotalPhysicalMemory() {
-#if V8_OS_MACOSX
-  int mib[2];
-  mib[0] = CTL_HW;
-  mib[1] = HW_MEMSIZE;
-  int64_t size = 0;
-  size_t len = sizeof(size);
-  if (sysctl(mib, 2, &size, &len, NULL, 0) != 0) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(size);
-#elif V8_OS_FREEBSD
-  int pages, page_size;
-  size_t size = sizeof(pages);
-  sysctlbyname("vm.stats.vm.v_page_count", &pages, &size, NULL, 0);
-  sysctlbyname("vm.stats.vm.v_page_size", &page_size, &size, NULL, 0);
-  if (pages == -1 || page_size == -1) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(pages) * page_size;
-#elif V8_OS_CYGWIN
-  MEMORYSTATUS memory_info;
-  memory_info.dwLength = sizeof(memory_info);
-  if (!GlobalMemoryStatus(&memory_info)) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(memory_info.dwTotalPhys);
-#else
-  intptr_t pages = sysconf(_SC_PHYS_PAGES);
-  intptr_t page_size = sysconf(_SC_PAGESIZE);
-  if (pages == -1 || page_size == -1) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(pages) * page_size;
-#endif
-}
-
-
 int OS::ActivationFrameAlignment() {
 #if V8_TARGET_ARCH_ARM
   // On EABI ARM targets this is required for fp correctness in the