Remove deleted file ssl_validity_checker_android.h from build system

The file payments/android/ssl_validity_checker_android.h was
removed when the JNI registration code changed but it remained
in the sources list, where it ended up causing some unrelated
problems so here it goes.

Bug: 683256
Change-Id: I7e57af91ad5848c73d814fc4b89712d106ecf358
Reviewed-on: https://chromium-review.googlesource.com/c/1290271
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#601328}
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index df9532c..fb5ae94 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -2491,7 +2491,6 @@
       "payments/android/payment_manifest_web_data_service_android.cc",
       "payments/android/payment_manifest_web_data_service_android.h",
       "payments/android/ssl_validity_checker_android.cc",
-      "payments/android/ssl_validity_checker_android.h",
       "permissions/grouped_permission_infobar_delegate_android.cc",
       "permissions/grouped_permission_infobar_delegate_android.h",
       "permissions/permission_dialog_delegate.cc",