tools/livepatch: cleanup unnecessary "j = ARRAY_SIZE(action_options);"

Local variable "j" would be used only when "i == ARRAY_SIZE(main_options)"
is true. Thus, it is not necessary to update "j" when "i ==
ARRAY_SIZE(main_options)" is false.

Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

tools/misc/xen-livepatch.c

@@ -435,8 +435,7 @@ int main(int argc, char *argv[])
                    "'xen-livepatch help'\n", argv[1]);
             return 1;
         }
-    } else
-        j = ARRAY_SIZE(action_options);
+    }
 
     xch = xc_interface_open(0,0,0);
     if ( !xch )