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/frc971/control_loops/polytope.h b/frc971/control_loops/polytope.h
index cba25f6..41c98e8 100644
--- a/frc971/control_loops/polytope.h
+++ b/frc971/control_loops/polytope.h
@@ -11,7 +11,8 @@
 #include "third_party/cddlib/lib-src/cdd.h"
 // clang-format on
 
-#include "glog/logging.h"
+#include "absl/log/check.h"
+#include "absl/log/log.h"
 #endif  // __linux__
 
 namespace frc971::controls {