Remove unused reverse case in bigdecimal add_spaces_to_s

Author: bjfish

lib/truffle/bigdecimal.rb

@@ -242,12 +242,12 @@ def to_s(format = 'E')
 
         format '%s%s.%s',
                prefix,
-               add_spaces_to_s(before_dot, false, space_frequency),
-               add_spaces_to_s(after_dot, false, space_frequency)
+               add_spaces_to_s(before_dot, space_frequency),
+               add_spaces_to_s(after_dot, space_frequency)
       else
         format '%s0.%se%d',
                prefix,
-               add_spaces_to_s(unscaled_value, false, space_frequency),
+               add_spaces_to_s(unscaled_value, space_frequency),
                exponent_value
       end
     else
@@ -270,19 +270,14 @@ def self._load(data)
     BigDecimal(data.split(':').last)
   end
 
-  private def add_spaces_to_s(string, reverse, space_frequency)
+  private def add_spaces_to_s(string, space_frequency)
     return string if space_frequency == 0
 
     remainder = string.size % space_frequency
-    shift     = reverse ? remainder : 0
-    pieces    = (string.size / space_frequency).times.map { |i| string[space_frequency*i + shift, space_frequency] }
+    pieces    = (string.size / space_frequency).times.map { |i| string[space_frequency*i, space_frequency] }
 
     if remainder > 0
-      if reverse
-        pieces.unshift string[0...remainder]
-      else
-        pieces.push string[-remainder..-1]
-      end
+      pieces.push string[-remainder..-1]
     end
 
     pieces.join ' '