R: fix antipattern

TECHDEBT.md

@@ -4,6 +4,7 @@
     - [x] dead code
     - [x] magic strings/numbers
     - [x] bad naming
+    - [x] antipattern
     - [ ] scopes
 
 # RPP

src/main/kotlin/org/example/Rover.kt

@@ -44,9 +44,7 @@ class Rover {
     val position: String
         get() = "${state.positionX} ${state.positionY} ${state.direction}"
 
-    fun pos(): String {
-        return position
-    }
+    fun pos(): String = position
 
     private var state = RoverState()
 }