gptfdisk: delete old 0.8.10 bbappend
gptfdisk: delete old 0.8.10 bbappend

The gptfdisk recipe is now in oe-core and we're using the git version.  This
old bbappend can be removed.

Signed-off-by: Ken Sharp <e6c8ad8f54d15df4645e8aaf3f7a209bc3688570@ni.com>

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