[native_doc_dartifier] Clean up analysis option file (#2411)

Author: goderbauer

pkgs/native_doc_dartifier/analysis_options.yaml

@@ -1,16 +1,11 @@
 include: package:dart_flutter_team_lints/analysis_options.yaml
 
 analyzer:
-  errors:
-    todo: ignore
   language:
-    strict-casts: true
-    strict-inference: true
     strict-raw-types: true
 
 linter:
   rules:
-    - dangling_library_doc_comments
     - prefer_const_declarations
     - prefer_expression_function_bodies
     - prefer_final_in_for_each