docs(guards): remove unecessary the

Author: tzengerink

content/guards.md

@@ -183,7 +183,7 @@ Alternatively, instead of using the `Reflector#createDecorator` method, we could
 
 #### Putting it all together
 
-Let's now go back and tie this together with our `RolesGuard`. Currently, it simply returns `true` in all cases, allowing every request to proceed. We want to make the return value conditional based on the comparing the **roles assigned to the current user** to the actual roles required by the current route being processed. In order to access the route's role(s) (custom metadata), we'll use the `Reflector` helper class again, as follows:
+Let's now go back and tie this together with our `RolesGuard`. Currently, it simply returns `true` in all cases, allowing every request to proceed. We want to make the return value conditional based on comparing the **roles assigned to the current user** to the actual roles required by the current route being processed. In order to access the route's role(s) (custom metadata), we'll use the `Reflector` helper class again, as follows:
 
 ```typescript
 @@filename(roles.guard)