liblog: remove reference to log/logger.h

Test: compile
Bug: 31992412
Change-Id: Idd52072d0f8c657ac53dc3e6b505a66c47a94357
diff --git a/liblog/log_is_loggable.c b/liblog/log_is_loggable.c
index 132d96f..dda09e0 100644
--- a/liblog/log_is_loggable.c
+++ b/liblog/log_is_loggable.c
@@ -23,8 +23,6 @@
 #include <sys/_system_properties.h>
 #include <unistd.h>
 
-#include <android/log.h>
-#include <log/logger.h>
 #include <private/android_logger.h>
 
 #include "log_portability.h"