Remove sass functions

app/javascript/styles/common.scss

@@ -1,4 +1,3 @@
-@use 'mastodon/functions';
 @use 'mastodon/mixins';
 @use 'mastodon/variables';
 @use 'fonts/roboto';

app/javascript/styles/contrast.scss

@@ -1,4 +1,3 @@
-@use 'mastodon/functions';
 @use 'mastodon/variables';
 @use 'mastodon/css_variables';
 @use 'common';

app/javascript/styles/mastodon-light.scss

@@ -1,4 +1,6 @@
-@use 'mastodon-light/variables';
+@use 'mastodon/variables' with (
+  $emojis-requiring-inversion: 'chains'
+);
 @use 'mastodon-light/css_variables';
 @use 'common';
 @use 'mastodon-light/diff';

app/javascript/styles/mastodon-light/variables.scss

@@ -1,14 +0,0 @@
-@use 'sass:color';
-
-@use '../mastodon/functions' with (
-  $darken-multiplier: 1,
-  $lighten-multiplier: -1
-);
-
-$white: #fff; // White
-$blurple-500: #6364ff; // Brand purple
-$grey-600: hsl(240deg, 8%, 33%); // Trout
-
-@use '../mastodon/variables' with (
-  $emojis-requiring-inversion: 'chains'
-);

app/javascript/styles/mastodon/_functions.scss

@@ -1,23 +0,0 @@
-@use 'sass:color';
-@use 'sass:string';
-@use 'sass:meta';
-
-$darken-multiplier: -1 !default;
-$lighten-multiplier: 1 !default;
-
-// Invert darkened and lightened colors
-@function darken($color, $amount) {
-  @return color.adjust(
-    $color,
-    $lightness: $amount * $darken-multiplier,
-    $space: hsl
-  );
-}
-
-@function lighten($color, $amount) {
-  @return color.adjust(
-    $color,
-    $lightness: $amount * $lighten-multiplier,
-    $space: hsl
-  );
-}

app/javascript/styles/mastodon/_theme_utils.scss

@@ -1,7 +1,3 @@
 @function css-alpha($base-color, $amount) {
   @return #{rgb(from $base-color r g b / $amount)};
 }
-
-@function css-mix($base-color, $mix-color, $amount) {
-  @return #{color-mix(in oklab, $base-color, $mix-color $amount)};
-}

app/javascript/styles/mastodon/_variables.scss

@@ -1,17 +1,6 @@
-@use 'sass:color';
-@use 'functions' as *;
-
 // Commonly used web colors
 $black: #000; // Black
 $white: #fff; // White
-$red-600: #b7253d !default; // Deep Carmine
-$red-500: #df405a !default; // Cerise
-$blurple-600: #563acc; // Iris
-$blurple-500: #6364ff; // Brand purple
-$blurple-400: #7477fd; // Medium slate blue
-$blurple-300: #858afa; // Faded Blue
-$grey-600: hsl(240deg, 8%, 33%); // Trout
-$grey-100: hsl(240deg, 51%, 90%); // Topaz
 
 // Keep this filter a SCSS variable rather than
 // a CSS Custom Property due to this Safari bug:

app/javascript/styles/mastodon/about.scss

@@ -1,5 +1,4 @@
 @use 'variables' as *;
-@use 'functions' as *;
 
 $maximum-width: 1235px;
 $fluid-breakpoint: $maximum-width + 20px;

app/javascript/styles/mastodon/accounts.scss

@@ -1,6 +1,5 @@
 @use 'sass:color';
 @use 'variables' as *;
-@use 'functions' as *;
 
 .card {
   & > a {

app/javascript/styles/mastodon/admin.scss

@@ -1,6 +1,5 @@
 @use 'sass:color';
 @use 'sass:math';
-@use 'functions' as *;
 @use 'variables' as *;
 
 $no-columns-breakpoint: 890px;

app/javascript/styles/mastodon/basics.scss

@@ -1,5 +1,4 @@
 @use 'variables' as *;
-@use 'functions' as *;
 @use 'theme_utils' as *;
 
 html.has-modal {

app/javascript/styles/mastodon/components.scss

@@ -1,6 +1,5 @@
 @use 'sass:color';
 @use 'variables' as *;
-@use 'functions' as *;
 @use 'mixins' as *;
 
 .app-body {

app/javascript/styles/mastodon/dashboard.scss

@@ -1,4 +1,3 @@
-@use 'functions' as *;
 @use 'variables' as *;
 
 .dashboard__counters {

app/javascript/styles/mastodon/emoji_picker.scss

@@ -1,5 +1,4 @@
 @use 'variables' as *;
-@use 'functions' as *;
 
 .emoji-mart {
   font-size: 13px;

app/javascript/styles/mastodon/forms.scss

@@ -1,6 +1,5 @@
 @use 'sass:color';
 @use 'variables' as *;
-@use 'functions' as *;
 
 code {
   font-family: $font-monospace, monospace;

app/javascript/styles/mastodon/modal.scss

@@ -1,5 +1,4 @@
 @use 'variables' as *;
-@use 'functions' as *;
 
 .modal-layout {
   background: var(--clr-bg-accent-subtle);

app/javascript/styles/mastodon/polls.scss

@@ -1,6 +1,5 @@
 @use 'sass:color';
 @use 'variables' as *;
-@use 'functions' as *;
 
 .poll {
   margin-top: 16px;

app/javascript/styles/mastodon/rtl.scss

@@ -1,4 +1,3 @@
-@use 'functions' as *;
 @use 'variables' as *;
 
 body.rtl {

app/javascript/styles/mastodon/tables.scss

@@ -1,5 +1,4 @@
 @use 'variables' as *;
-@use 'functions' as *;
 
 .table {
   width: 100%;

app/javascript/styles/mastodon/widgets.scss

@@ -1,7 +1,5 @@
 @use 'sass:color';
 @use 'variables' as *;
-@use 'functions' as *;
-@use 'theme_utils' as *;
 
 .directory {
   &__tag {