Merge remote-tracking branch 'origin/swift-3.1-branch' into stable

* origin/swift-3.1-branch:
  [compiler-rt] Fixup Add support for the dynamic shadow allocation
diff --git a/lib/sanitizer_common/sanitizer_posix.cc b/lib/sanitizer_common/sanitizer_posix.cc
index ad5db88..c70d5a4 100644
--- a/lib/sanitizer_common/sanitizer_posix.cc
+++ b/lib/sanitizer_common/sanitizer_posix.cc
@@ -358,11 +358,6 @@
   return SignalContext(context, addr, pc, sp, bp, is_memory_access, write_flag);
 }
 
-uptr FindAvailableMemoryRange(uptr size, uptr alignment, uptr left_padding) {
-  UNREACHABLE("FindAvailableMemoryRange is not available");
-  return 0;
-}
-
 } // namespace __sanitizer
 
 #endif // SANITIZER_POSIX