app/controllers/homies_controller.rb

@@ -45,8 +45,7 @@ class HomiesController < ApplicationController
     params.require(:homie).permit(
       :name,
       :importance,
-      :about,
-      :chip_id
+      :about
     )
   end
 end

app/models/homie.rb

@@ -1,7 +1,6 @@
 class Homie < ApplicationRecord
   has_many :money_moves
   has_many :work
-  belongs_to :chip
 
   def self.cash(importance)
     totals = Homie.all.joins(:money_moves).group(:id).order(:id).sum(:amount)

db/migrate/20200918012614_remove_default_chip_from_homies.rb

@@ -0,0 +1,5 @@
+class RemoveDefaultChipFromHomies < ActiveRecord::Migration[5.2]
+  def change
+    remove_reference :homies, :chip
+  end
+end