init: more header cleanup

Remove includes of "log.h" that really want <android-base/logging.h>
Fix header include order
Remove headers included in .cpp files that their associated .h already includes
Remove some unused headers

Test: boot bullhead
Change-Id: I2b415adfe86a5c8bbe4fb1ebc53c7b0ee2253824
diff --git a/init/ueventd_parser.cpp b/init/ueventd_parser.cpp
index 554c1e3..510d7bb 100644
--- a/init/ueventd_parser.cpp
+++ b/init/ueventd_parser.cpp
@@ -14,18 +14,18 @@
  * limitations under the License.
  */
 
+#include "ueventd_parser.h"
+
 #include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <unistd.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
-#include "ueventd.h"
-#include "ueventd_parser.h"
+#include <android-base/logging.h>
+
 #include "parser.h"
-#include "log.h"
 #include "util.h"
 
 static list_declare(subsystem_list);