char: check for initial_reset_issued unnecessary

At init, qemu_chr_reset is always called with initial_reset_issued set to 1.
So checking for it to be set is not necessary.

Patchworks-ID: 35286
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
