niconsole-image-safe: Remove unused IMAGE_DEV_MANAGER setting
niconsole-image-safe: Remove unused IMAGE_DEV_MANAGER setting

Signed-off-by: Richard Tollerton <67c688e7f7482ba5c4ebe3d70bc77594748182a6@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt