refactor: Retire DepositPreAuth and DepositAuth amendments (#5978)

Amendments activated for more than 2 years can be retired. This change retires the fDepositPreAuth and DepositAuth amendments.

src/test/app/AMMExtended_test.cpp

@@ -3039,8 +3039,6 @@ private:
         using namespace jtx;
         Account const becky{"becky"};
 
-        bool const supportsPreauth = {features[featureDepositPreauth]};
-
         // The initial implementation of DepositAuth had a bug where an
         // account with the DepositAuth flag set could not make a payment
         // to itself.  That bug was fixed in the DepositPreauth amendment.
@@ -3068,15 +3066,11 @@ private:
         env(fset(becky, asfDepositAuth));
         env.close();
 
-        // becky pays herself again.  Whether it succeeds depends on
-        // whether featureDepositPreauth is enabled.
-        TER const expect{
-            supportsPreauth ? TER{tesSUCCESS} : TER{tecNO_PERMISSION}};
-
+        // becky pays herself again.
         env(pay(becky, becky, USD(10)),
             path(~USD),
             sendmax(XRP(10)),
-            ter(expect));
+            ter(tesSUCCESS));
 
         env.close();
     }
@@ -3784,9 +3778,7 @@ private:
     void
     testDepositAuth()
     {
-        auto const supported{jtx::testable_amendments()};
-        testPayment(supported - featureDepositPreauth);
-        testPayment(supported);
+        testPayment(jtx::testable_amendments());
         testPayIOU();
     }