system/core: drop or replace log/logger.h

debuggerd does not require log/logger.h, can use android/log.h
In some cases, mark why log/logger.h was required.

Test: Compile and boot smoke test
Bug: 26552300
Bug: 31289077
Bug: 31456426
Change-Id: Ia34987e25a01d81971ec8d785415f732b8376c4f
diff --git a/liblog/logprint.c b/liblog/logprint.c
index 2c4e619..f9b14bd 100644
--- a/liblog/logprint.c
+++ b/liblog/logprint.c
@@ -33,6 +33,7 @@
 
 #include <android/log.h>
 #include <cutils/list.h>
+#include <log/logger.h>
 #include <log/logprint.h>
 
 #include "log_portability.h"