diff --git a/_build/spelling_word_list.txt b/_build/spelling_word_list.txt
deleted file mode 100644
index fa05ce9430e..00000000000
--- a/_build/spelling_word_list.txt
+++ /dev/null
@@ -1,344 +0,0 @@
-accessor
-Akamai
-analytics
-Ansi
-Ansible
-async
-authenticator
-authenticators
-autocompleted
-autocompletion
-autoconfiguration
-autoconfigure
-autoconfigured
-autoconfigures
-autoconfiguring
-autoload
-autoloaded
-autoloader
-autoloaders
-autoloading
-autoprefixing
-autowire
-autowireable
-autowired
-autowiring
-backend
-backends
-balancer
-balancers
-bcrypt
-benchmarking
-Bitbucket
-bitmask
-bitmasks
-bitwise
-Blackfire
-boolean
-booleans
-Brasseur
-browserslist
-buildpack
-buildpacks
-bundler
-cacheable
-Caddy
-callables
-camelCase
-casted
-changelog
-changeset
-charset
-charsets
-checkboxes
-classmap
-classname
-clearers
-cloner
-cloners
-codebase
-config
-configs
-configurator
-configurators
-contrib
-cron
-cronjobs
-cryptographic
-cryptographically
-Ctrl
-ctype
-cURL
-customizable
-customizations
-Cygwin
-dataset
-datepicker
-decrypt
-denormalization
-denormalize
-denormalized
-denormalizing
-deprecations
-deserialization
-deserialize
-deserialized
-deserializing
-destructor
-dev
-dn
-DNS
-docblock
-Dotenv
-downloader
-Doxygen
-DSN
-Dunglas
-easter
-Eberlei
-emilie
-enctype
-entrypoints
-enum
-env
-escaper
-escpaer
-extensibility
-extractable
-eZPublish
-Fabien
-failover
-filesystem
-filesystems
-formatter
-formatters
-frontend
-getter
-getters
-GitHub
-gmail
-Gmail
-Goutte
-grapheme
-hardcode
-hardcoded
-hardcodes
-hardcoding
-hasser
-hassers
-headshot
-HInclude
-hostname
-https
-iconv
-igbinary
-incrementing
-ini
-inlined
-inlining
-installable
-instantiation
-interoperable
-intl
-Intl
-invokable
-IPv
-isser
-issers
-Jpegoptim
-jQuery
-js
-Karlton
-kb
-kB
-Kévin
-Ki
-KiB
-kibibyte
-Kubernetes
-Kudu
-labelled
-latin
-Ldap
-libketama
-licensor
-lifecycle
-liip
-linter
-localhost
-Loggly
-Logplex
-lookups
-loopback
-lorenzo
-Luhn
-macOS
-matcher
-matchers
-mbstring
-mebibyte
-memcache
-memcached
-MiB
-michelle
-minification
-minified
-minifier
-minifies
-minify
-minifying
-misconfiguration
-misconfigured
-misgendering
-Monolog
-mutator
-nagle
-namespace
-namespaced
-namespaces
-namespacing
-natively
-nd
-netmasks
-nginx
-normalizer
-normalizers
-npm
-nyholm
-OAuth
-OPcache
-overcomplicate
-Packagist
-parallelizes
-parsers
-PHP
-PHPUnit
-PID
-plaintext
-polyfill
-polyfills
-postcss
-Potencier
-pre
-preconfigured
-predefines
-Predis
-preload
-preloaded
-preloading
-prepend
-prepended
-prepending
-prepends
-preprocessed
-preprocessors
-Procfile
-profiler
-programmatically
-prototyped
-rebase
-reconfiguring
-reconnection
-redirections
-refactorization
-regexes
-renderer
-resolvers
-responder
-reStructuredText
-reusability
-runtime
-sandboxing
-schemas
-screencast
-semantical
-serializable
-serializer
-sexualized
-Silex
-sluggable
-socio
-specificities
-SQLite
-stacktrace
-stacktraces
-storages
-stringified
-stylesheet
-stylesheets
-subclasses
-subdirectories
-subdirectory
-sublcasses
-sublicense
-sublincense
-subrequests
-subtree
-superclass
-superglobal
-superglobals
-symfony
-Symfony
-symlink
-symlinks
-syntaxes
-templating
-testability
-th
-theming
-throbber
-timestampable
-timezones
-TLS
-tmpfs
-tobias
-todo
-Tomayko
-Toolbelt
-tooltip
-Traversable
-triaging
-UI
-uid
-unary
-unauthenticate
-uncacheable
-uncached
-uncomment
-uncommented
-undelete
-unhandled
-unicode
-Unix
-unmapped
-unminified
-unported
-unregister
-unrendered
-unserialize
-unserialized
-unserializing
-unsubmitted
-untracked
-uploader
-URI
-validator
-validators
-variadic
-VirtualBox
-Vue
-webpack
-webpacked
-webpackJsonp
-webserver
-whitespace
-whitespaces
-woh
-Wordpress
-Xdebug
-xkcd
-Xliff
-XML
-XPath
-yaml
-yay