fixes #2838

app/controllers/comment_votes_controller.rb

@@ -13,7 +13,7 @@ class CommentVotesController < ApplicationController
 
   def destroy
     @comment = Comment.find(params[:comment_id])
-    @comment.unvote!(params[:score])
+    @comment.unvote!
   rescue CommentVote::Error => x
     @error = x
     render status: 500

app/controllers/comments_controller.rb

@@ -70,13 +70,6 @@ class CommentsController < ApplicationController
     end
   end
 
-  def unvote
-    @comment = Comment.find(params[:id])
-    @comment.unvote!
-  rescue CommentVote::Error => x
-    @error = x
-  end
-
 private
   def index_for_post
     @post = Post.find(params[:post_id])

app/controllers/posts_controller.rb

@@ -83,13 +83,6 @@ class PostsController < ApplicationController
     end
   end
 
-  def unvote
-    @post = Post.find(params[:id])
-    @post.unvote!
-  rescue PostVote::Error => x
-    @error = x
-  end
-
   def home
     if CurrentUser.user.is_anonymous?
       redirect_to intro_explore_posts_path