diff --git a/core/themes/stark/README.txt b/core/themes/stark/README.txt
index dd6f386..d502465 100644
--- a/core/themes/stark/README.txt
+++ b/core/themes/stark/README.txt
@@ -10,9 +10,7 @@ default markup without the interference of changes commonly made by more
 complex themes.
 
 To avoid obscuring CSS added to the page by Drupal or a contrib module, the
-Stark theme itself has no styling, except just enough CSS to arrange the page
-in a traditional "Header, sidebars, content, and footer" layout. See the
-layout.css file for more information.
+Stark theme itself has no styling.
 
 
 ABOUT DRUPAL THEMING
diff --git a/core/themes/stark/config/schema/stark.schema.yml b/core/themes/stark/config/schema/stark.schema.yml
deleted file mode 100644
index 2b7f958..0000000
--- a/core/themes/stark/config/schema/stark.schema.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-# Schema for the configuration files of the Stark theme.
-
-stark.settings:
-  type: theme_settings
-  label: 'Stark settings'
diff --git a/core/themes/stark/css/layout.css b/core/themes/stark/css/layout.css
index 486014b..e69de29 100644
--- a/core/themes/stark/css/layout.css
+++ b/core/themes/stark/css/layout.css
@@ -1,123 +0,0 @@
-/**
- * @file
- * Stark layout method
- *
- * To avoid obscuring CSS added to the page by Drupal or a contrib module, the
- * Stark theme itself has no styling, except just enough CSS to arrange the page
- * in a traditional "Header, sidebars, content, and footer" layout.
- *
- * This layout method works reasonably well, but shouldn't be used on a
- * production site because it can break. For example, if an over-large image
- * (one that is wider than 20% of the viewport) is in the left sidebar, the
- * image will overlap with the .layout-content to the right.
- */
-img {
-  height: auto;
-  max-width: 100%;
-}
-main:after {
-  content: "";
-  display: table;
-  clear: both;
-}
-
-.layout-content,
-.layout-sidebar-first,
-.layout-sidebar-second {
-  display: inline;
-  position: relative;
-}
-
-details,
-summary {
-  display: block;
-}
-
-@media all and (min-width: 480px) and (max-width: 959px) {
-  .layout-content {
-    width: 67%;
-    float: right; /* LTR */
-  }
-  [dir="rtl"] .layout-content {
-    float: left;
-  }
-
-  .layout-sidebar-first {
-    width: 33%;
-    float: left; /* LTR */
-  }
-  [dir="rtl"] .layout-sidebar-first {
-    float: right;
-  }
-
-  .layout-sidebar-second {
-    float: right; /* LTR */
-    clear: both;
-    width: 100%;
-  }
-  [dir="rtl"] .layout-sidebar-second {
-    float: right;
-    clear: right;
-  }
-
-  .layout-sidebar-second .block {
-    float: left; /* LTR */
-    width: 33%;
-  }
-  [dir="rtl"] .layout-sidebar-second .block {
-    float: right;
-  }
-  .layout-sidebar-second .block:nth-child(3n+1) {
-    clear: both;
-  }
-}
-
-@media all and (min-width: 960px) {
-  .layout-content {
-    width: 60%;
-    float: left; /* LTR */
-    left: 20%; /* LTR */
-  }
-  [dir="rtl"] .layout-content {
-    float: right;
-    left: 0;
-    right: 20%;
-  }
-
-  .layout-sidebar-first {
-    width: 20%;
-    float: left; /* LTR */
-    left: -60%; /* LTR */
-  }
-  [dir="rtl"] .layout-sidebar-first {
-    float: right;
-    left: 0;
-    right: -60%;
-  }
-
-  .layout-sidebar-second {
-    float: right; /* LTR */
-    width: 20%;
-  }
-  [dir="rtl"] .layout-sidebar-second {
-    float: left;
-  }
-}
-
-/**
- * Responsive tables.
- */
-@media screen and (max-width:28.125em) { /* 450px */
-  th.priority-low,
-  td.priority-low,
-  th.priority-medium,
-  td.priority-medium {
-    display: none;
-  }
-}
-@media screen and (max-width:45em) { /* 720px */
-  th.priority-low,
-  td.priority-low {
-    display: none;
-  }
-}
diff --git a/core/themes/stark/stark.breakpoints.yml b/core/themes/stark/stark.breakpoints.yml
deleted file mode 100644
index 92d33b2..0000000
--- a/core/themes/stark/stark.breakpoints.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-stark.mobile:
-  label: mobile
-  mediaQuery: '(min-width: 0px)'
-  weight: 2
-  multipliers:
-   - 1x
-stark.narrow:
-  label: narrow
-  mediaQuery: 'all and (min-width: 480px) and (max-width: 959px)'
-  weight: 1
-  multipliers:
-    - 1x
-stark.wide:
-  label: wide
-  mediaQuery: 'all and (min-width: 960px)'
-  weight: 0
-  multipliers:
-    - 1x
diff --git a/core/themes/stark/stark.info.yml b/core/themes/stark/stark.info.yml
index bd520f5..cda5c0d 100644
--- a/core/themes/stark/stark.info.yml
+++ b/core/themes/stark/stark.info.yml
@@ -6,5 +6,3 @@ version: VERSION
 core: 8.x
 libraries:
   - stark/global-styling
-stylesheets-remove:
-  - core/assets/vendor/normalize-css/normalize.css