powerpc/64s/exception: machine check remove bitrotted comment

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-3-npiggin@gmail.com

arch/powerpc/kernel/exceptions-64s.S

@@ -933,10 +933,6 @@ EXC_COMMON_BEGIN(system_reset_common)
 
 
 EXC_REAL_BEGIN(machine_check, 0x200, 0x100)
-	/* This is moved out of line as it can be patched by FW, but
-	 * some code path might still want to branch into the original
-	 * vector
-	 */
 	EXCEPTION_PROLOG_0 PACA_EXMC
 BEGIN_FTR_SECTION
 	b	machine_check_common_early