Bug 1622647 [wpt PR 22265] - [WPT/common/security-features] Remove spec_json.js from repository, a=testonly

Automatic update from web-platform-tests [WPT/common/security-features] Remove spec_json.js from repository `spec_json.js` are not used in WPT production runs. This CL removes them, to omit `spec_json.js`-related diffs in upcoming CLs. This CL doesn't change the generated results or test behavior. Bug: 906850 Change-Id: I1001286f2680294f1d8e747f23a25040f5bfd253 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2103728 Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org> Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org> Reviewed-by: Eriko Kurimoto <elkurin@chromium.org> Cr-Commit-Position: refs/heads/master@{#750483} -- wpt-commits: 4568db58b5528eeb9edf931ab34d83fd6883600f wpt-pr: 22265
2020-03-16 14:16:58 +00:00 · 2020-03-16 14:16:58 +00:00 · 7ce6dcc218
--- a/testing/web-platform/tests/mixed-content/generic/spec_json.js
+++ b/testing/web-platform/tests/mixed-content/generic/spec_json.js
--- a/testing/web-platform/tests/referrer-policy/4K+1/generic/spec_json.js
+++ b/testing/web-platform/tests/referrer-policy/4K+1/generic/spec_json.js
--- a/testing/web-platform/tests/referrer-policy/4K-1/generic/spec_json.js
+++ b/testing/web-platform/tests/referrer-policy/4K-1/generic/spec_json.js
--- a/testing/web-platform/tests/referrer-policy/4K/generic/spec_json.js
+++ b/testing/web-platform/tests/referrer-policy/4K/generic/spec_json.js
--- a/testing/web-platform/tests/referrer-policy/generic/spec_json.js
+++ b/testing/web-platform/tests/referrer-policy/generic/spec_json.js
--- a/testing/web-platform/tests/upgrade-insecure-requests/generic/spec_json.js
+++ b/testing/web-platform/tests/upgrade-insecure-requests/generic/spec_json.js