Remove CONFIG_ANDROID_SNAPSHOTS macro.

The feature is no longer optional.

Change-Id: I4558f12e3804e42069e8a3e6bcf0837d350206ed
diff --git a/android/snapshot.c b/android/snapshot.c
index ca86700..047465f 100644
--- a/android/snapshot.c
+++ b/android/snapshot.c
@@ -33,12 +33,10 @@
 #include <time.h>
 #include <unistd.h>
 
+#include "bswap.h"
 #include "android/utils/debug.h"
 #include "android/utils/system.h"
-#include "bswap.h"
-#include "snapshot.h"
-
-#if CONFIG_ANDROID_SNAPSHOTS
+#include "android/snapshot.h"
 
 /* "Magic" sequence of four bytes required by spec to be the first four bytes
  * of any Qcow file.
@@ -333,4 +331,3 @@
     close(fd);
     exit(0);
 }
-#endif // CONFIG_ANDROID_SNAPSHOTS