delete "we probably already know" filler...

Author: kwalrath

public/docs/ts/latest/guide/dependency-injection.jade

@@ -65,7 +65,7 @@ include ../_util-fns
 
   How can we make `Car` more robust, flexible, and testable?
 
-  That's super easy. We probably already know what to do. We change our `Car` constructor to a version with DI:
+  That's super easy. We change our `Car` constructor to a version with DI:
 
   <a id="ctor-injection"></a>
 // #enddocregion why-2