Replace cutils/log.h and rationalize log/log.h and android/log.h

- cutils/log.h treat as deprecated and lead by example
- android/log.h to be used instead of log/log.h if required
- add system includes that are assumed as side effects of log.h
- modules that use SLOG should use SLOG for all logging (installd)
- define LOG_TAG first
- remove logging infrastructure if not used

Test: build
Bug: 31289077
Change-Id: Iea147a0104c7ab7f12451304131d6500f42141e7
diff --git a/cmds/servicemanager/service_manager.c b/cmds/servicemanager/service_manager.c
index ea41558..8f4e01b 100644
--- a/cmds/servicemanager/service_manager.c
+++ b/cmds/servicemanager/service_manager.c
@@ -22,7 +22,7 @@
 #define ALOGE(x...) fprintf(stderr, "svcmgr: " x)
 #else
 #define LOG_TAG "ServiceManager"
-#include <cutils/log.h>
+#include <android/log.h>
 #endif
 
 struct audit_data {