arm64: cpucaps: Remove stale comment about keeping capabilities sorted

There is no functional requirement to keep the entries in arm64's
tools/cpucaps file sorted alphabetically and, in fact, they have fallen
out of order over time. Given that only the arm64 tree touches this file
and the perceived benefit of sorting was to help with conflicts, just
remove the stale comment and accept that we're collectively not very
good at the alphabet.

In the limited cases where a specific ordering is important, we enforce
it through build-time assertions (e.g. in can_use_gic_priorities()).

Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Reported-by: Marc Zyngier <maz@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>

arch/arm64/tools/cpucaps

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 #
-# Internal CPU capabilities constants, keep this list sorted
+# Internal CPU capabilities constants
 
 ALWAYS_BOOT
 ALWAYS_SYSTEM