Setting the nova_console_keymap variable to 'en-us' breaks the
keyboard input for novnc consoles. It's recommended to let vnc
automatically select the correct keymap.
This patch removes the keymap variables from the `nova.conf`
templates and their default values.
Manually adjusted backport to preserve the keymap variables in the
nova.conf file. This ensures that any deployers who have customized
these variables will still see their customized keymap settings in
their nova configuration files.
Closes-bug: 1691791
Change-Id: I049ad6db2198dc8d0fae04160486c5ba6f7f36f1
(cherry picked from commit 385d03cf20)
f46544aafc