Revert "Add Chrono.h - std::chrono support header"

This reverts commit r284590 as it fails on the mingw buildbot. I think I know the
fix, but I cannot test it right now. Will reapply when I verify it works ok.

This reverts r284590.

llvm-svn: 284615

1 files changed, 0 insertions, 10 deletions

diff --git a/llvm/unittests/Support/TimeValueTest.cpp b/llvm/unittests/Support/TimeValueTest.cpp
index 9e8690f57bc..3d2b9780c06 100644
--- a/llvm/unittests/Support/TimeValueTest.cpp
+++ b/llvm/unittests/Support/TimeValueTest.cpp
@@ -37,14 +37,4 @@ TEST(TimeValue, Win32FILETIME) {
   EXPECT_EQ(ft1970, epoch.toWin32Time());
 }
 
-TEST(TimeValue, Chrono) {
-  sys::TimeValue TV;
-  TV.fromEpochTime(0);
-  sys::TimePoint<> TP = TV;
-  EXPECT_EQ(0u, sys::toTimeT(TP));
-
-  TP += std::chrono::seconds(47);
-  TV = TP;
-  EXPECT_EQ(47u, TV.toEpochTime());
-}
 }