drm/i915/adl_s: Remove require_force_probe protection

Removing force probe protection from ADLS platform. Did
not observe warnings, errors, flickering or any visual
defects while doing ordinary tasks like browsing and
editing documents in a two monitor setup.

For more info drm-tip idle run results :
https://intel-gfx-ci.01.org/tree/drm-tip/bat-all.html

?

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: ravitejax <ravitejax.goud.talla@intel.com>
Reviewed-by: Ayaz A Siddiqui <ayaz.siddiqui@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210903182034.668467-1-ravitejax.gpud.talla@intel.com