Eliminate the use of autofill::REQUIRE_AUTOCOMPLETE [step 3 of 3].

components/autofill/ios/browser/js_autofill_manager.h

Index: components/autofill/ios/browser/js_autofill_manager.h
diff --git a/components/autofill/ios/browser/js_autofill_manager.h b/components/autofill/ios/browser/js_autofill_manager.h
index 53b7437eea3de3288ee9037d54a37e7498590a26..6ef2f800d4c05801e9b3c2e4574da482eb2d23a8 100644
--- a/components/autofill/ios/browser/js_autofill_manager.h
+++ b/components/autofill/ios/browser/js_autofill_manager.h
@@ -23,15 +23,6 @@
                                completionHandler:
                                    (void (^)(NSString*))completionHandler;
 
-// TODO(jdonnelly): Remove this as soon as the downstream code stops using it.
-// Extracts forms from a web page. Only forms with at least |requiredFields|
-// fields and the appropriate attribute requirements are extracted.
-// |completionHandler| is called with the JSON string of forms of a web page.
-// |completionHandler| cannot be nil.
-- (void)fetchFormsWithRequirements:(autofill::RequirementsMask)requirements
-        minimumRequiredFieldsCount:(NSUInteger)requiredFieldsCount
-                 completionHandler:(void (^)(NSString*))completionHandler;
-
 // Stores the current active element. This is used to make the element active
 // again in case the web view loses focus when a dialog is presented over it.
 - (void)storeActiveElement;