Remove old theme controls from main and admin dashboards

admin_dashboard.yaml

@@ -75,18 +75,6 @@ views:
             title: Automations
             state_color: true
             show_header_toggle: false
-          - type: entities
-            entities:
-              - entity: input_text.material_rounded_base_color_tony_stork
-                secondary_info: none
-                name: Tony
-              - entity: input_text.material_rounded_base_color_christina_stork
-                secondary_info: none
-                name: Tina
-              - entity: input_text.material_rounded_base_color_kallen_stork
-                secondary_info: none
-                name: Kallen
-            title: Theme Colors
       - type: grid
         cards:
           - type: heading

main_dashboard.yaml

@@ -3986,9 +3986,6 @@ views:
                 name: I am awake
               - entity: input_select.kallen_morning_briefing_location
                 name: Morning Briefing Location
-              - entity: input_text.material_rounded_base_color_kallen_stork
-                secondary_info: none
-                name: Theme Color
     max_columns: 4
     cards: []
     background: