remove needless volatile

* array.c (rb_ary_each): remove needless volatile for outdated
  clang 3.0.  revert r32201.

* cont.c (cont_capture): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51227 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

array.c

@@ -1811,10 +1811,9 @@ ary_enum_length(VALUE ary, VALUE args, VALUE eobj)
  */
 
 VALUE
-rb_ary_each(VALUE array)
+rb_ary_each(VALUE ary)
 {
     long i;
-    volatile VALUE ary = array;
 
     RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     for (i=0; i<RARRAY_LEN(ary); i++) {

cont.c

@@ -519,7 +519,7 @@ cont_capture(volatile int *stat)
     }
 
     if (ruby_setjmp(cont->jmpbuf)) {
-	volatile VALUE value;
+	VALUE value;
 
 	VAR_INITIALIZED(cont);
 	value = cont->value;