Remove unused TwoStatesCounter component

This component was originally used in the BreakpointSidebar. Now that
it is no longer used, we can remove it.

Bug: none
Change-Id: Ief2930a21d97712ddd9107bd3642c7e2598daa6a
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6012190
Reviewed-by: Kateryna Prokopenko <[email protected]>
Auto-Submit: Kim-Anh Tran <[email protected]>
Commit-Queue: Kateryna Prokopenko <[email protected]>
Commit-Queue: Kim-Anh Tran <[email protected]>

Author: ktran

config/gni/devtools_grd_files.gni

@@ -721,7 +721,6 @@ grd_files_release_sources = [
   "front_end/ui/components/text_editor/text_editor.js",
   "front_end/ui/components/text_prompt/text_prompt.js",
   "front_end/ui/components/tree_outline/tree_outline.js",
-  "front_end/ui/components/two_states_counter/two_states_counter.js",
   "front_end/ui/legacy/components/color_picker/color_picker.js",
   "front_end/ui/legacy/components/cookie_table/cookie_table.js",
   "front_end/ui/legacy/components/data_grid/data_grid.js",
@@ -2268,8 +2267,6 @@ grd_files_debug_sources = [
   "front_end/ui/components/tree_outline/TreeOutline.js",
   "front_end/ui/components/tree_outline/TreeOutlineUtils.js",
   "front_end/ui/components/tree_outline/treeOutline.css.js",
-  "front_end/ui/components/two_states_counter/TwoStatesCounter.js",
-  "front_end/ui/components/two_states_counter/twoStatesCounter.css.js",
   "front_end/ui/legacy/ARIAUtils.js",
   "front_end/ui/legacy/ActionRegistration.js",
   "front_end/ui/legacy/ActionRegistry.js",

front_end/BUILD.gn

@@ -233,7 +233,6 @@ group("unittests") {
     "ui/components/text_editor:unittests",
     "ui/components/text_prompt:unittests",
     "ui/components/tree_outline:unittests",
-    "ui/components/two_states_counter:unittests",
     "ui/legacy:copy_stylesheets_for_server",
     "ui/legacy:unittests",
     "ui/legacy/components/color_picker:unittests",

front_end/panels/sources/components/BUILD.gn

@@ -30,7 +30,6 @@ devtools_module("components") {
     "../../../ui/components/buttons:bundle",
     "../../../ui/components/helpers:bundle",
     "../../../ui/components/legacy_wrapper:bundle",
-    "../../../ui/components/two_states_counter:bundle",
     "../../../ui/legacy/components/utils:bundle",
     "../../../ui/lit-html:bundle",
     "../../../ui/visual_logging:bundle",

front_end/ui/components/docs/BUILD.gn

@@ -61,7 +61,6 @@ group("docs") {
     "./text_prompt",
     "./theme_colors",
     "./tree_outline",
-    "./two_states_counter",
     "./user_agent_client_hints",
   ]
 }