Removing unused method.

Author: ppisl

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/TimeModuleBuiltins.java

@@ -295,10 +295,6 @@ private static String twoDigit(int i) {
             return padInt(i, 2, '0');
         }
 
-        private static String twoDigitWithSpace(int i) {
-            return padInt(i, 2, ' ');
-        }
-
         public int[] checkStructtime(PTuple time) {
             Object[] date = time.getArray();
             if(date.length < 9) {