wdb-migration: remove unnecessary indexes from TXCountTimeIndex.

lib/wallet/migrations.js

@@ -805,8 +805,6 @@ class MigrateTXCountTimeIndex extends AbstractMigration {
     this.layout = MigrateTXCountTimeIndex.layout();
 
     this.headersBatchSize = 1000;
-    this.confirmedBatchSize = 1000;
-    this.unconfirmedBatchSize = 1000;
 
     this.UNCONFIRMED_HEIGHT = 0xffffffff;
 
@@ -1227,9 +1225,6 @@ class MigrateTXCountTimeIndex extends AbstractMigration {
         // Latest unconfirmed Index.
         I: bdb.key('I'),
 
-        // Coin - we need this in order to find accounts.
-        // c[tx-hash][index] -> coin
-        c: bdb.key('c', ['hash256', 'uint32']),
         // We need this for spent inputs in blocks.
         // d[tx-hash][index] -> undo coin
         d: bdb.key('d', ['hash256', 'uint32']),
@@ -1242,8 +1237,8 @@ class MigrateTXCountTimeIndex extends AbstractMigration {
 
         // these are not affected by the migration, but here for reference
         // and time check.
+        // t[tx-hash] -> extended tx
         t: bdb.key('t', ['hash256']),
-        T: bdb.key('T', ['uint32', 'hash256']),
 
         // Transaction.
         // z[height][index] -> tx hash (tx by count)
@@ -1258,8 +1253,6 @@ class MigrateTXCountTimeIndex extends AbstractMigration {
         // Confirmed.
         // b[height] -> block record
         b: bdb.key('b', ['uint32']),
-        // h[height][tx-hash] -> dummy (tx by height)
-        h: bdb.key('h', ['uint32', 'hash256']),
 
         // g[time][height][index][hash] -> dummy (tx by time)
         g: bdb.key('g', ['uint32', 'uint32', 'uint32', 'hash256']),