py: Add mp_obj_new_str_from_vstr, and use it where relevant.

This patch allows to reuse vstr memory when creating str/bytes object.
This improves memory usage.

Also saves code ROM: 128 bytes on stmhal, 92 bytes on bare-arm, and 88
bytes on unix x64.

1 files changed, 0 insertions, 2 deletions

diff --git a/py/misc.h b/py/misc.h
index c0fd293de..df017f44a 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -135,8 +135,6 @@ char *vstr_str(vstr_t *vstr);
 size_t vstr_len(vstr_t *vstr);
 void vstr_hint_size(vstr_t *vstr, size_t size);
 char *vstr_extend(vstr_t *vstr, size_t size);
-bool vstr_set_size(vstr_t *vstr, size_t size);
-bool vstr_shrink(vstr_t *vstr);
 char *vstr_add_len(vstr_t *vstr, size_t len);
 void vstr_add_byte(vstr_t *vstr, byte v);
 void vstr_add_char(vstr_t *vstr, unichar chr);