Make full-form autofill the only implementation on iOS.

components/autofill/core/browser/autofill_manager.cc

Index: components/autofill/core/browser/autofill_manager.cc
diff --git a/components/autofill/core/browser/autofill_manager.cc b/components/autofill/core/browser/autofill_manager.cc
index e43e85b26d8268c3f1c56f4bc09cb35c5e81517b..41962b58f23f9685ac2014b139d20effa9cacabc 100644
--- a/components/autofill/core/browser/autofill_manager.cc
+++ b/components/autofill/core/browser/autofill_manager.cc
@@ -66,7 +66,6 @@
 #include "url/gurl.h"
 
 #if defined(OS_IOS)
-#include "components/autofill/core/browser/autofill_field_trial_ios.h"
 #include "components/autofill/core/browser/keyboard_accessory_metrics_logger.h"
 #endif
 
@@ -591,13 +590,6 @@ bool AutofillManager::WillFillCreditCardNumber(const FormData& form,
   if (autofill_field->Type().GetStorableType() == CREDIT_CARD_NUMBER)
     return true;
 
-#if defined(OS_IOS)
-  // On iOS, we only fill out one field at a time (assuming the new full-form
-  // feature isn't enabled). So we only need to check the current field.
-  if (!AutofillFieldTrialIOS::IsFullFormAutofillEnabled())
-    return false;
-#endif
-
   // If the relevant section is already autofilled, the new fill operation will
   // only fill |autofill_field|.
   if (SectionIsAutofilled(*form_structure, form, autofill_field->section()))