Disable Code Climate maintainability checks (#5798)

- Migrate `.codeclimate.yml` to version 2 structure
- Disable Code Climate [maintainability checks][]

https://docs.codeclimate.com/docs/advanced-configuration

[maintainability checks]: http://blog.codeclimate.com/blog/2017/10/12/10-point-technical-debt-assessment

This commit upgrades the Code Climate configuration file and disables
the new maintainability checks.

Once this PR is merged, we can experiment with the new checks via pull
requests (the PR will report new issues) or via the [Code Climate
CLI][cli], which [now also supports the new maintainability
checks][cli-support].

[cli]: https://github.com/codeclimate/codeclimate
[cli-support]: https://codeclimate.com/changelog/5a0e488824cfa902a300091c

1 files changed, 24 insertions, 9 deletions

diff --git a/.codeclimate.yml b/.codeclimate.yml
index 29701a777..47e3e6ab9 100644
--- a/.codeclimate.yml
+++ b/.codeclimate.yml
@@ -1,21 +1,36 @@
-engines:
+version: "2"
+checks:
+  argument-count:
+    enabled: false
+  complex-logic:
+    enabled: false
+  file-lines:
+    enabled: false
+  method-complexity:
+    enabled: false
+  method-count:
+    enabled: false
+  method-lines:
+    enabled: false
+  nested-control-flow:
+    enabled: false
+  return-statements:
+    enabled: false
+  similar-code:
+    enabled: false
+  identical-code:
+    enabled: false
+plugins:
   brakeman:
     enabled: true
   bundler-audit:
     enabled: true
-  duplication:
-    enabled: false
   eslint:
     enabled: true
   rubocop:
     enabled: true
   scss-lint:
     enabled: true
-ratings:
-  paths:
-  - "**.rb"
-  - "**.js"
-  - "**.scss"
-exclude_paths:
+exclude_patterns:
 - spec/
 - vendor/asset