Revert "Avoid using NanoTime for compiler and verifier"

This reverts commit c89e6edbdce97c7d199b54bf63aed7ea01ebf1ff.

Change-Id: Id3b89121a19e64bf3c457c39b375f3d3c0fcc579
diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index 8a69c7e..c1610c2 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -61,7 +61,7 @@
 
 namespace art {
 
-static constexpr bool kTimeCompileMethod = false;
+static constexpr bool kTimeCompileMethod = !kIsDebugBuild;
 
 static double Percentage(size_t x, size_t y) {
   return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y));
diff --git a/runtime/verifier/method_verifier.cc b/runtime/verifier/method_verifier.cc
index 2347825..0ee4414 100644
--- a/runtime/verifier/method_verifier.cc
+++ b/runtime/verifier/method_verifier.cc
@@ -47,7 +47,7 @@
 namespace art {
 namespace verifier {
 
-static constexpr bool kTimeVerifyMethod = false;
+static constexpr bool kTimeVerifyMethod = !kIsDebugBuild;
 static constexpr bool gDebugVerify = false;
 // TODO: Add a constant to method_verifier to turn on verbose logging?