refactor: remove unused m2 mixin

Author: andrewseguin

src/material/_index.scss

@@ -17,7 +17,6 @@
 @forward './core/theming/theming' as private-* show private-clamp-density;
 @forward './core/typography/typography' show typography-hierarchy;
 @forward './core/typography/typography-utils' show font-shorthand;
-@forward 'core/tokens/m2-tokens' show m2-tokens-from-theme;
 @forward './core/tokens/m3-system' show system-level-colors,
     system-level-typography, system-level-elevation, system-level-shape,
     system-level-motion, system-level-state, theme, theme-overrides;

src/material/core/tokens/BUILD.bazel

@@ -93,52 +93,3 @@ sass_library(
         "//src/material/tree:m3",
     ],
 )
-
-sass_library(
-    name = "m2_tokens",
-    srcs = ["_m2-tokens.scss"],
-    deps = [
-        ":format_tokens",
-        "//src/material/autocomplete:m2",
-        "//src/material/badge:m2",
-        "//src/material/bottom-sheet:m2",
-        "//src/material/button:m2",
-        "//src/material/button-toggle:m2",
-        "//src/material/card:m2",
-        "//src/material/checkbox:m2",
-        "//src/material/chips:m2",
-        "//src/material/core:m2",
-        "//src/material/core:ripple_m2",
-        "//src/material/core/m2:m2_sass",
-        "//src/material/core/option:m2",
-        "//src/material/core/selection/pseudo-checkbox:m2",
-        "//src/material/core/style:sass_utils",
-        "//src/material/core/theming",
-        "//src/material/datepicker:m2",
-        "//src/material/dialog:m2",
-        "//src/material/divider:m2",
-        "//src/material/expansion:m2",
-        "//src/material/form-field:m2",
-        "//src/material/grid-list:m2",
-        "//src/material/icon:m2",
-        "//src/material/list:m2",
-        "//src/material/menu:m2",
-        "//src/material/paginator:m2",
-        "//src/material/progress-bar:m2",
-        "//src/material/progress-spinner:m2",
-        "//src/material/radio:m2",
-        "//src/material/select:m2",
-        "//src/material/sidenav:m2",
-        "//src/material/slide-toggle:m2",
-        "//src/material/slider:m2",
-        "//src/material/snack-bar:m2",
-        "//src/material/sort:m2",
-        "//src/material/stepper:m2",
-        "//src/material/table:m2",
-        "//src/material/tabs:m2",
-        "//src/material/timepicker:m2",
-        "//src/material/toolbar:m2",
-        "//src/material/tooltip:m2",
-        "//src/material/tree:m2",
-    ],
-)