indexer: remove failing BenchmarkNewProcess

it's failing with:
    bench_test.go:157:
        error:
          got non-nil error
        got:
          e"transaction not found"
        stack:
          /home/runner/work/vocdoni-node/vocdoni-node/vochain/indexer/bench_test.go:157
            qt.Assert(b, err, qt.IsNil)

vochain/indexer/bench_test.go

@@ -160,34 +160,3 @@ func BenchmarkFetchTx(b *testing.B) {
 			numTxs, (i+1)*numTxs, time.Since(startTime))
 	}
 }
-
-func BenchmarkNewProcess(b *testing.B) {
-	app := vochain.TestBaseApplication(b)
-
-	idx := newTestIndexer(b, app, true)
-	_ = idx // used via the callbacks; we want to benchmark it too
-	startTime := time.Now()
-	numProcesses := b.N
-	entityID := util.RandomBytes(20)
-
-	b.ReportAllocs()
-	b.ResetTimer()
-	for i := 0; i < numProcesses; i++ {
-		pid := util.RandomBytes(32)
-		if err := app.State.AddProcess(&models.Process{
-			ProcessId: pid,
-			// EntityId:     util.RandomBytes(20),
-			EntityId:     entityID,
-			EnvelopeType: &models.EnvelopeType{EncryptedVotes: false},
-			Status:       models.ProcessStatus_READY,
-			BlockCount:   100000000,
-			VoteOptions:  &models.ProcessVoteOptions{MaxCount: 3, MaxValue: 1},
-			Mode:         &models.ProcessMode{AutoStart: true},
-		}); err != nil {
-			b.Fatal(err)
-		}
-	}
-	app.AdvanceTestBlock()
-	log.Infof("indexed %d new processes, took %s",
-		numProcesses, time.Since(startTime))
-}