[linux-yocto] superflous Arm patch in kernel-cache

[Richard A Griffiths]

Building a 'new' qemu machine for use with the Kernel Labs using
qemuarm (versatile) as the base. A patch from kernel-
cache  root/arch/arm/v7-A15/ARM-LPAE-Invalidate-the-TLB-for-module-
addresses-dur.patch won't apply as it already upstream. This is using
4.18.14. 
Manually removing the patch works, but I'm not sure why this patch is
still in kernel-cache.