Remove LoanDraw transaction (#5792)

include/xrpl/protocol/detail/ledger_entries.macro

@@ -558,7 +558,11 @@ LEDGER_ENTRY(ltLOAN, 0x0089, Loan, loan, ({
     {sfPreviousPaymentDate,  soeREQUIRED},
     {sfNextPaymentDueDate,   soeREQUIRED},
     {sfPaymentRemaining,     soeREQUIRED},
+//#if LOANDRAW
+// TODO: Remove this when you remove the rest of the LOANDRAW blocks.
+// Directives don't work with macro expansion.
     {sfAssetsAvailable,      soeDEFAULT},
+//#endif
     {sfPrincipalOutstanding, soeREQUIRED},
     // Save the original request amount for rounding / scaling of
     // other computations, particularly for IOUs

include/xrpl/protocol/detail/transactions.macro

@@ -1031,7 +1031,6 @@ TRANSACTION(ttLOAN_SET, 80, LoanSet,
     {sfCloseInterestRate, soeOPTIONAL},
     {sfOverpaymentInterestRate, soeOPTIONAL},
     {sfPrincipalRequested, soeREQUIRED},
-    {sfStartDate, soeREQUIRED},
     {sfPaymentTotal, soeOPTIONAL},
     {sfPaymentInterval, soeOPTIONAL},
     {sfGracePeriod, soeOPTIONAL},
@@ -1059,6 +1058,7 @@ TRANSACTION(ttLOAN_MANAGE, 82, LoanManage,
     {sfLoanID, soeREQUIRED},
 }))
 
+#if LOANDRAW
 /** The Borrower uses this transaction to draws funds from the Loan. */
 #if TRANSACTION_INCLUDE
 #   include <xrpld/app/tx/detail/LoanDraw.h>
@@ -1070,6 +1070,7 @@ TRANSACTION(ttLOAN_DRAW, 83, LoanDraw,
     {sfLoanID, soeREQUIRED},
     {sfAmount, soeREQUIRED, soeMPTSupported},
 }))
+#endif
 
 /** The Borrower uses this transaction to make a Payment on the Loan. */
 #if TRANSACTION_INCLUDE