Remove redundant bigstring stubs

They're in core js_of_ocaml

Signed-off-by: Jon Ludlam <jon@recoil.org>

lib/cstruct.js

@@ -14,26 +14,6 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-//Provides: caml_blit_string_to_bigstring
-//Requires: caml_ba_set_1, caml_string_unsafe_get
-function caml_blit_string_to_bigstring(str, str_off, buf, buf_off, len) {
-  var i;
-  for (i = 0; i < len; i++) {
-    caml_ba_set_1(buf, buf_off + i, caml_string_unsafe_get(str, str_off + i));
-  }
-  return 0;
-}
-
-//Provides: caml_blit_bigstring_to_string
-//Requires: caml_ba_get_1, caml_string_unsafe_set
-function caml_blit_bigstring_to_string(buf, buf_off, str, str_off, len) {
-  var i;
-  for (i = 0; i < len; i++) {
-    caml_string_unsafe_set(str, str_off + i, caml_ba_get_1(buf, buf_off + i));
-  }
-  return 0;
-}
-
 //Provides: caml_blit_bigstring_to_bigstring
 //Requires: caml_ba_get_1, caml_ba_set_1
 function caml_blit_bigstring_to_bigstring(src, src_off, dst, dst_off, len) {