softmmu/vl: Remove the check for colons in -accel parameters

The new -accel option does not accept colons in the parameters anymore
(since it does not convert the parameters to -machine accel=... parameters
anymore). Thus we can now remove the check for colons in -accel:

$ qemu-system-x86_64 -accel kvm:tcg
qemu-system-x86_64: -accel kvm:tcg: invalid accelerator kvm:tcg

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20200618074001.13642-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/softmmu/vl.c b/softmmu/vl.c
index a7a2e9e..f476ef8 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -3506,11 +3506,6 @@
                     g_slist_free(accel_list);
                     exit(0);
                 }
-                if (optarg && strchr(optarg, ':')) {
-                    error_report("Don't use ':' with -accel, "
-                                 "use -M accel=... for now instead");
-                    exit(1);
-                }
                 break;
             case QEMU_OPTION_usb:
                 olist = qemu_find_opts("machine");