Remove the dead #include's in verifier.cpp.

A follow-up to commit 5e535014dd.
Also clean up Android.mk, since libverifier no longer needs anything
from libminui.

Test: mmma bootable/recovery
Test: recovery_component_test passes.
Change-Id: I1c11e4bbeef67ca34a2054debf1f5b280d509217

verifier.cpp

@@ -21,8 +21,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <functional>
 #include <algorithm>
+#include <functional>
 #include <memory>
 
 #include <android-base/logging.h>
@@ -31,9 +31,7 @@
 #include <openssl/obj_mac.h>
 
 #include "asn1_decoder.h"
-#include "common.h"
 #include "print_sha1.h"
-#include "ui.h"
 
 static constexpr size_t MiB = 1024 * 1024;