Modify minimum comment body length

app/models/comment.rb

@@ -4,5 +4,5 @@ class Comment < ApplicationRecord
   belongs_to :parent, class_name: 'Comment', optional: true
   has_many :children, class_name: 'Comment', foreign_key: 'parent_id', dependent: :destroy
 
-  validates :body, presence: true, length: { minimum: 4 }
+  validates :body, presence: true
 end

spec/models/comment_spec.rb

@@ -15,12 +15,6 @@ RSpec.describe Comment, type: :model do
     expect(empty_body).to be_invalid
   end
 
-  it 'has a body with 4 or more characters' do
-    short_body = FactoryBot.build(:comment, body: 'a' * 3)
-
-    expect(short_body).to be_invalid
-  end
-
   it 'can have no parent' do
     no_parent = FactoryBot.build(:comment, parent: nil)