[Educational Notes] Remove complex-closure-inference.

This educational note was obsoleted by SE-0362.

Author: hborla

include/swift/AST/EducationalNotes.def

@@ -33,9 +33,6 @@ EDUCATIONAL_NOTES(non_nominal_extension, "nominal-types.md")
 EDUCATIONAL_NOTES(associated_type_witness_conform_impossible,
                   "nominal-types.md")
 
-EDUCATIONAL_NOTES(cannot_infer_closure_result_type,
-                  "complex-closure-inference.md")
-
 EDUCATIONAL_NOTES(invalid_dynamic_callable_type,
                   "dynamic-callable-requirements.md")
 EDUCATIONAL_NOTES(missing_dynamic_callable_kwargs_method,