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/mutex/mutex.cc b/aos/mutex/mutex.cc
index 30a9534..4a3fb25 100644
--- a/aos/mutex/mutex.cc
+++ b/aos/mutex/mutex.cc
@@ -1,6 +1,7 @@
 #include "aos/mutex/mutex.h"
 
-#include "glog/logging.h"
+#include "absl/log/check.h"
+#include "absl/log/log.h"
 
 namespace aos {