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Finish disabling end-of-life FB_HYPERV module for Fedora rawhide

Patrick Langrequested to merge
PatrickLang/kernel-ark:disable-fb_hyperv-fedora into os-build

There were changes made to set CONFIG_DRM_HYPERV=m and unset CONFIG_FB_HYPERV in !1259 (merged)

The old module was disabled by adding: redhat/configs/common/generic/x86/CONFIG_FB_HYPERV which unsets that config

redhat/configs/common/generic/x86/CONFIG_FB_HYPERV, which previously set it was removed.

Unfortunately - redhat/configs/fedora/generic/x86/CONFIG_FB_HYPERV still remains and that is adding the old module back to Fedora kernels.

As a result, the Fedora rawhide kernel package (and livecd) end up loading FB_HYPERV first instead of the newer DRM_HYPERV module. https://src.fedoraproject.org/rpms/kernel/blob/rawhide/f/kernel-x86_64-fedora.config#_1851

Removing redhat/configs/fedora/generic/x86/CONFIG_FB_HYPERV should fix the issue and let the common config take precedence.

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