profiles/arch: drop efistub masks

Stabilisation is done for amd64/arm64/x86.

Bug: https://bugs.gentoo.org/932842
Signed-off-by: Sam James <sam@gentoo.org>

profiles/arch/amd64/package.use.stable.mask

@@ -45,10 +45,6 @@ dev-python/qtpy remoteobjects
 # No stable versions of ROCm at the moment
 sys-apps/hwloc rocm
 
-# Nowa Ammerlaan <nowa@gentoo.org> (2024-03-17)
-# Experimental, virt-firmware is keyworded only unstable
-sys-kernel/installkernel efistub
-
 # Ionen Wolkens <ionen@gentoo.org> (2024-01-16)
 # cuda (and thus cudnn) are not available in stable
 media-libs/opencv cudnn

profiles/arch/arm64/package.use.stable.mask

@@ -20,10 +20,6 @@ dev-build/meson test-full
 # mongodb needed for tests which is not stable keyworded for arm64
 dev-libs/mongo-c-driver test
 
-# Nowa Ammerlaan <nowa@gentoo.org> (2024-03-21)
-# Experimental, virt-firmware is keyworded only unstable
-sys-kernel/installkernel efistub
-
 # Michał Górny <mgorny@gentoo.org> (2023-04-22)
 # Needs unkeyworded dev-python/sympy
 dev-python/nbval test

profiles/arch/x86/package.use.stable.mask

@@ -75,10 +75,6 @@ virtual/notification-daemon kde
 # sys-block/nbdkit is not yet marked stable here
 app-emulation/libvirt nbd
 
-# Nowa Ammerlaan <nowa@gentoo.org> (2024-03-21)
-# Experimental, virt-firmware is keyworded only unstable
-sys-kernel/installkernel efistub
-
 # Arthur Zamarin <arthurzam@gentoo.org> (2023-06-03)
 # Destabilizing x86 keywords on sci-*/* packages
 app-metrics/collectd collectd_plugins_gps