x86/Kconfig: tighten up wording of the CONFIG_X86_FRED help text

The CONFIG_X86_FRED help text has both "try to" and "if the system
supports it", which are redundant statements.

Remove "try to".

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

Author: H. Peter Anvin

arch/x86/Kconfig

@@ -557,7 +557,7 @@ config X86_FRED
 	bool "Flexible Return and Event Delivery"
 	depends on X86_64
 	help
-	  When enabled, try to use Flexible Return and Event Delivery
+	  When enabled, use Flexible Return and Event Delivery
 	  instead of the legacy SYSCALL/SYSENTER/IDT architecture for
 	  ring transitions and exception/interrupt handling if the
 	  system supports it.