Remove dead code. NFC.

This interface was added 2 years ago but users never developed.

llvm-svn: 223368
diff --git a/llvm/unittests/Support/MemoryTest.cpp b/llvm/unittests/Support/MemoryTest.cpp
index 8ad90e0..f439cb2 100644
--- a/llvm/unittests/Support/MemoryTest.cpp
+++ b/llvm/unittests/Support/MemoryTest.cpp
@@ -21,7 +21,7 @@
 public:
   MappedMemoryTest() {
     Flags = GetParam();
-    PageSize = sys::process::get_self()->page_size();
+    PageSize = sys::Process::getPageSize();
   }
 
 protected:
diff --git a/llvm/unittests/Support/ProcessTest.cpp b/llvm/unittests/Support/ProcessTest.cpp
index 3045c30..298a0a3 100644
--- a/llvm/unittests/Support/ProcessTest.cpp
+++ b/llvm/unittests/Support/ProcessTest.cpp
@@ -19,26 +19,6 @@
 using namespace llvm;
 using namespace sys;
 
-TEST(ProcessTest, SelfProcess) {
-  EXPECT_TRUE(process::get_self());
-  EXPECT_EQ(process::get_self(), process::get_self());
-
-#if defined(LLVM_ON_UNIX)
-  EXPECT_EQ(getpid(), process::get_self()->get_id());
-#elif defined(LLVM_ON_WIN32)
-  EXPECT_EQ(GetCurrentProcessId(), process::get_self()->get_id());
-#endif
-
-  EXPECT_LT(1u, process::get_self()->page_size());
-
-  EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_user_time());
-  EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_user_time());
-  EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_system_time());
-  EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_system_time());
-  EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_wall_time());
-  EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_wall_time());
-}
-
 TEST(ProcessTest, GetRandomNumberTest) {
   const unsigned r1 = Process::GetRandomNumber();
   const unsigned r2 = Process::GetRandomNumber();