Clean up Mojo C API dependent targets

ui/views/mus/BUILD.gn

Index: ui/views/mus/BUILD.gn
diff --git a/ui/views/mus/BUILD.gn b/ui/views/mus/BUILD.gn
index 80205d81772d8e825dea6f024c49f1fc7c9c1c9b..116a7f47a0f262942124272742c6099ff1e6b659 100644
--- a/ui/views/mus/BUILD.gn
+++ b/ui/views/mus/BUILD.gn
@@ -65,7 +65,6 @@ component("mus") {
     "//components/mus/public/cpp/surfaces",
     "//components/mus/public/interfaces",
     "//mojo/common",
-    "//mojo/public/c/system:for_component",
     "//mojo/public/cpp/bindings",
     "//services/catalog/public/cpp",
     "//services/shell/public/cpp",
@@ -121,12 +120,6 @@ group("for_mojo_application") {
   ]
 }
 
-group("for_shared_library") {
-  public_deps = [
-    ":mus",
-  ]
-}
-
 source_set("test_support") {
   testonly = true
 
@@ -318,9 +311,3 @@ mojo_application_manifest("interactive_ui_tests_manifest") {
   application_name = "views_mus_interactive_ui_tests"
   source = "interactive_ui_tests_manifest.json"
 }
-
-group("for_component") {
-  public_deps = [
-    ":mus",
-  ]
-}