Revert "Add headings for methods in the output of ls"

This reverts commit 1c33a73964.

Looks unpleasant for most of Pry users.

lib/pry/commands/ls.rb

@@ -326,9 +326,6 @@ class Pry
     def output_section(heading, body)
       return "" if body.compact.empty?
       table = Pry::Helpers.tablify_to_screen_width(body)
-      if heading =~ /.+methods\z/ && body.size >= 36
-        paint_heading_methods(body)
-      end
       "#{text.bold(color(:heading, heading))}: \n#{table}\n"
     end
 
@@ -336,22 +333,6 @@ class Pry
     def color(type, str)
       text.send(Pry.config.ls.send(:"#{type}_color"), str)
     end
-
-    # The true place for this method is {Pry::Helpers::Table}. Both JRuby and
-    # Rubinius don't like it when it's there, for some reason. *shrugs*
-    def paint_heading_methods(body)
-      cur = ''
-      body.each_with_index.inject([]) { |indices, (method, idx)|
-        if method[0] != cur && method[0] =~ /[a-z]/
-          indices << idx
-          cur = method[0]
-        end
-        indices
-      }.map { |i|
-        body[i][0] = "\e[1;7m#{ body[i][0] }\e[0m"
-        body[i][11..-1] = "\e[4m#{ body[i][11..-1] }\e[0m"
-      }
-    end
   end
 
   Pry::Commands.add_command(Pry::Command::Ls)