diff --git a/core/misc/icons/55565b/daterange.svg b/core/misc/icons/55565b/daterange.svg
deleted file mode 100644
index 8b852f0d95cea093ac128c9603ba26453151c8a3..0000000000000000000000000000000000000000
--- a/core/misc/icons/55565b/daterange.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg height="36" viewBox="0 0 36 36" width="36" xmlns="http://www.w3.org/2000/svg"><path d="m27 3.6h7.2c.9941 0 1.8.8059 1.8 1.8v28.8c0 .9941-.8059 1.8-1.8 1.8h-32.4c-.994104 0-1.8-.8059-1.8-1.8v-28.8c0-.9941.805896-1.8 1.8-1.8h7.2v-3.6h3.6v3.6h10.8v-3.6h3.6zm-23.4 10.8v18h28.8v-18zm3.6 3.6h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6z" fill="#55565b"/></svg>
\ No newline at end of file
diff --git a/core/modules/datetime_range/css/datetime_range.icon.theme.css b/core/modules/datetime_range/css/datetime_range.icon.theme.css
deleted file mode 100644
index 028163f29e1c58c1995040d0adca0f9b5f7c73eb..0000000000000000000000000000000000000000
--- a/core/modules/datetime_range/css/datetime_range.icon.theme.css
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * DO NOT EDIT THIS FILE.
- * See the following change record for more information,
- * https://www.drupal.org/node/3084859
- * @preserve
- */
-.field-icon-daterange {
- background-image: url("data:image/svg+xml,%3csvg height='36' viewBox='0 0 36 36' width='36' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m27 3.6h7.2c.9941 0 1.8.8059 1.8 1.8v28.8c0 .9941-.8059 1.8-1.8 1.8h-32.4c-.994104 0-1.8-.8059-1.8-1.8v-28.8c0-.9941.805896-1.8 1.8-1.8h7.2v-3.6h3.6v3.6h10.8v-3.6h3.6zm-23.4 10.8v18h28.8v-18zm3.6 3.6h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6z' fill='%2355565b'/%3e%3c/svg%3e");
-}
diff --git a/core/modules/datetime_range/css/datetime_range.icon.theme.pcss.css b/core/modules/datetime_range/css/datetime_range.icon.theme.pcss.css
deleted file mode 100644
index 01b7955cccf3fae3c822d9e0061393325e420215..0000000000000000000000000000000000000000
--- a/core/modules/datetime_range/css/datetime_range.icon.theme.pcss.css
+++ /dev/null
@@ -1,3 +0,0 @@
-.field-icon-daterange {
- background-image: url(../../../misc/icons/55565b/daterange.svg);
-}
diff --git a/core/modules/datetime_range/datetime_range.libraries.yml b/core/modules/datetime_range/datetime_range.libraries.yml
deleted file mode 100644
index 178d96067195893d058869c5696a9889b570ae1e..0000000000000000000000000000000000000000
--- a/core/modules/datetime_range/datetime_range.libraries.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-drupal.datetime_range-icon:
- version: VERSION
- css:
- theme:
- css/datetime_range.icon.theme.css: {}
- dependencies:
- - field_ui/drupal.field_ui.manage_fields
diff --git a/core/modules/datetime_range/datetime_range.module b/core/modules/datetime_range/datetime_range.module
index 8c81fb52685c91423ac8f9202e5d5b4597ddf1a0..0dbbd8d70d16763fd86ec187b41a4cc5c248079f 100644
--- a/core/modules/datetime_range/datetime_range.module
+++ b/core/modules/datetime_range/datetime_range.module
@@ -5,7 +5,6 @@
* Field hooks to implement a datetime field that stores a start and end date.
*/
-use Drupal\Core\Field\FieldTypeCategoryManagerInterface;
use Drupal\Core\Url;
use Drupal\Core\Routing\RouteMatchInterface;
@@ -28,12 +27,3 @@ function datetime_range_help($route_name, RouteMatchInterface $route_match) {
return $output;
}
}
-
-/**
- * Implements hook_field_type_category_info_alter().
- */
-function datetime_range_field_type_category_info_alter(&$definitions) {
- // The `datetime_range` field type belongs in the `general` category, so the
- // libraries need to be attached using an alter hook.
- $definitions[FieldTypeCategoryManagerInterface::FALLBACK_CATEGORY]['libraries'][] = 'datetime_range/drupal.datetime_range-icon';
-}
diff --git a/core/modules/field_ui/css/field_ui.icons.theme.css b/core/modules/field_ui/css/field_ui.icons.theme.css
index 6679d13efa41736624dc3b154835c93bb9d594aa..3224d77fcbd2684d5bcd386cadf3d1f4af430749 100644
--- a/core/modules/field_ui/css/field_ui.icons.theme.css
+++ b/core/modules/field_ui/css/field_ui.icons.theme.css
@@ -31,6 +31,3 @@
.field-icon-reference {
background-image: url("data:image/svg+xml,%3csvg height='36' viewBox='0 0 36 36' width='36' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m10.98 9v4.98h5.52v3.06h-9v6h-5.52v9.96h14.04v-9.96h-5.52v-3.06h15v3.06h-5.52v9.96h14.04v-9.96h-5.52v-6h-9v-3.06h5.52v-9.96h-14.04zm11.026.015-.016 1.995h-7.98l-.016-1.995-.016-1.995h8.044zm-8.986 18.975v2.01h-8.04v-4.02h8.04zm18 0v2.01h-8.04v-4.02h8.04z' fill='%2355565b'/%3e%3c/svg%3e");
}
-.field-icon-daterange {
- background-image: url("data:image/svg+xml,%3csvg height='36' viewBox='0 0 36 36' width='36' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m27 3.6h7.2c.9941 0 1.8.8059 1.8 1.8v28.8c0 .9941-.8059 1.8-1.8 1.8h-32.4c-.994104 0-1.8-.8059-1.8-1.8v-28.8c0-.9941.805896-1.8 1.8-1.8h7.2v-3.6h3.6v3.6h10.8v-3.6h3.6zm-23.4 10.8v18h28.8v-18zm3.6 3.6h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6zm9 0h3.6v3.6h-3.6z' fill='%2355565b'/%3e%3c/svg%3e");
-}
diff --git a/core/modules/field_ui/css/field_ui.icons.theme.pcss.css b/core/modules/field_ui/css/field_ui.icons.theme.pcss.css
index 09bf9cd6a57f9b77f09db962ea4ea08db25b673a..db397fd7d518279ea2d0ee338badea3365ad5d2e 100644
--- a/core/modules/field_ui/css/field_ui.icons.theme.pcss.css
+++ b/core/modules/field_ui/css/field_ui.icons.theme.pcss.css
@@ -31,7 +31,3 @@
.field-icon-reference {
background-image: url(../../../misc/icons/55565b/reference.svg);
}
-
-.field-icon-daterange {
- background-image: url(../../../misc/icons/55565b/daterange.svg);
-}
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php b/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
index d4361352f7f5c41fffc8b402579020167e3ceaee..f0eedf43cb046fcea9eb71839d44ab6d9315af31 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
@@ -26,7 +26,6 @@ class Stable9LibraryOverrideTest extends StableLibraryOverrideTestBase {
'media/drupal.media-icon',
'options/drupal.options-icon',
'telephone/drupal.telephone-icon',
- 'datetime_range/drupal.datetime_range-icon',
];
/**