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/installd/globals.cpp b/cmds/installd/globals.cpp
index 93e1ce5..c0ea79c 100644
--- a/cmds/installd/globals.cpp
+++ b/cmds/installd/globals.cpp
@@ -14,19 +14,17 @@
 ** limitations under the License.
 */
 
+#define LOG_TAG "installd"
+
 #include <stdlib.h>
 #include <string.h>
 
-#include <cutils/log.h>               // TODO: Move everything to base::logging.
+#include <android/log.h>              // TODO: Move everything to base::logging.
 
 #include <globals.h>
 #include <installd_constants.h>
 #include <utils.h>
 
-#ifndef LOG_TAG
-#define LOG_TAG "installd"
-#endif
-
 namespace android {
 namespace installd {