feature-support: remove unreleased hardware text

These lines are clearly outdated as M3 and M4 hardware has been
available to the public for a while now.

Signed-off-by: Axel Flordal <axel@flordal.net>

Author: AxelFl

docs/platform/feature-support/m3.md

@@ -20,9 +20,6 @@ If a feature is not ready, then there is no estimation on when it will be ready.
 - [M3 Pro/Max devices](#m3-promax-devices)
 - [Notes](#notes)
 
-Note that as these machines have not been released for general availability yet, supported and missing features are predictions based on what Apple has changed
-on a per-SoC and per-machine basis in the past. This page will change rapidly once work begins on support for these machines.
-
 ## SoC blocks
 These are features/hardware blocks that are present on all devices with the given SoC.
 

docs/platform/feature-support/m4.md

@@ -20,9 +20,6 @@ If a feature is not ready, then there is no estimation on when it will be ready.
 - [M4 Pro/Max devices](#m4-promax-devices)
 - [Notes](#notes)
 
-Note that as these machines have not been released for general availability yet, supported and missing features are predictions based on what Apple has changed
-on a per-SoC and per-machine basis in the past. This page will change rapidly once work begins on support for these machines.
-
 ## SoC blocks
 These are features/hardware blocks that are present on all devices with the given SoC.