Remove fallback skill todo as an issue already address it

If an issue is present the TODO will just clutter the code, let's just remove it entirely.

app/src/main/kotlin/org/stypox/dicio/eval/SkillHandler.kt

@@ -57,7 +57,6 @@ class SkillHandler @Inject constructor(
         TranslationInfo,
     )
 
-    // TODO add more fallback skills (e.g. search)
     private val fallbackSkillInfoList = listOf(
         TextFallbackInfo,
     )