cpu-exec: Remove relic orphaned comment

This comment should have been deleted by commit 0ac087f1 ("removed
unused code") but somehow it is still here. There's no point to keep it.
Signed-off-by: NSergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: NSergey Fedorov <sergey.fedorov@linaro.org>
Message-Id: <1462286050-21778-1-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

cpu-exec.c

@@ -582,8 +582,6 @@ int cpu_exec(CPUState *cpu)
                 /* Try to align the host and virtual clocks
                    if the guest is in advance */
                 align_clocks(&sc, cpu);
-                /* reset soft MMU for next block (it can currently
-                   only be set by a memory fault) */
             } /* for(;;) */
         } else {
 #if defined(__clang__) || !QEMU_GNUC_PREREQ(4, 6)