mtp: removed the faulty g_free(new_name) at the end of do_set_display_name()
mtp: removed the faulty g_free(new_name) at the end of do_set_display_name()

The new_name string is passed to add_cache_entry(), which assumes full
transfer; therefore, freeing the string manually causes issues further
down the line.

Signed-off-by: Rok Mandeljc <883aac631e8c222ad7fb3cf8ce1133e652b9b999@gmail.com>

gicmo/gvfs,gicmo/gvfs,gicmo/gvfs,gicmo/gvfs