Move over to ABSL logging and flags.

Removes gperftools too since that wants gflags.

Here come the fireworks.

Change-Id: I79cb7bcf60f1047fbfa28bfffc21a0fd692e4b1c
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/aos/time/time.cc b/aos/time/time.cc
index 0e02481..3c88931 100644
--- a/aos/time/time.cc
+++ b/aos/time/time.cc
@@ -15,8 +15,9 @@
 
 #ifdef __linux__
 
+#include "absl/log/check.h"
+#include "absl/log/log.h"
 #include "absl/strings/numbers.h"
-#include "glog/logging.h"
 
 #else  // __linux__