Revert "refactored add_line_numbers to use colorize method"

This reverts commit 3c6f8ecc9c.

lib/pry/helpers/command_helpers.rb

@@ -23,16 +23,15 @@ class Pry
         end
       end
 
+      def colorize text
+        Pry.color ? CodeRay.scan(text.to_s, :ruby).term : text
+      end
+
       def add_line_numbers(lines, start_line)
         line_array = lines.each_line.to_a
         line_array.each_with_index.map do |line, idx|
           adjusted_index = idx + start_line
-          if Pry.color
-            cindex = CodeRay.scan("#{adjusted_index}", :ruby).term
-            "#{cindex}: #{line}"
-          else
-            "#{idx}: #{line}"
-          end
+          "#{colorize adjusted_index}: #{line}"
         end.join
       end
 
@@ -67,6 +66,19 @@ class Pry
         end
       end
 
+      def remove_first_word(text)
+        text.split.drop(1).join(' ')
+      end
+
+      # turn off color for duration of block
+      def no_color(&block)
+        old_color_state = Pry.color
+        Pry.color = false
+        yield
+      ensure
+        Pry.color = old_color_state
+      end
+
       def code_and_code_type_for(meth)
         case code_type = code_type_for(meth)
         when nil