drm/xe/oa: Remove WARN_ON's for unsupported configurations

The OA ioctl's already have drm_dbg's which are sufficient to tell the user
that OA is not supported on unsupported configurations (execlist mode and
platform gen < 12). Having additional WARN_ON's for these during driver
probe create unnecessary noise. Just remove these WARN_ON's.
Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619225617.3465899-1-ashutosh.dixit@intel.com

drivers/gpu/drm/xe/xe_oa.c

@@ -2385,7 +2385,7 @@ int xe_oa_init(struct xe_device *xe)
 	int ret;
 
 	/* Support OA only with GuC submission and Gen12+ */
-	if (XE_WARN_ON(!xe_device_uc_enabled(xe)) || XE_WARN_ON(GRAPHICS_VER(xe) < 12))
+	if (!xe_device_uc_enabled(xe) || GRAPHICS_VER(xe) < 12)
 		return 0;
 
 	oa->xe = xe;