Stop using #if for conditional compilation.

Use regular 'if' to prevent bitrot.

Also remove remaining typedefs.

Change-Id: I2e6ca928e2db29b88b643cf990ff05cfb0be94a6
diff --git a/init/ueventd.cpp b/init/ueventd.cpp
index 86621cd..d56b91a 100644
--- a/init/ueventd.cpp
+++ b/init/ueventd.cpp
@@ -70,12 +70,12 @@
 
     open_devnull_stdio();
     klog_init();
-#if LOG_UEVENTS
-    /* Ensure we're at a logging level that will show the events */
-    if (klog_get_level() < KLOG_INFO_LEVEL) {
-        klog_set_level(KLOG_INFO_LEVEL);
+    if (LOG_UEVENTS) {
+        /* Ensure we're at a logging level that will show the events */
+        if (klog_get_level() < KLOG_INFO_LEVEL) {
+            klog_set_level(KLOG_INFO_LEVEL);
+        }
     }
-#endif
 
     union selinux_callback cb;
     cb.func_log = log_callback;