remove older deploymentID fix behavior to speed up startup (#19497)

since mid 2018 we do not have any deployments
without deployment-id, it is time to put this
code to rest, this PR removes this old code as
its no longer valuable.

on setups with 1000's of drives these are all
quite expensive operations.

cmd/format-erasure_test.go

@@ -21,7 +21,6 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
-	"errors"
 	"os"
 	"reflect"
 	"testing"
@@ -431,62 +430,6 @@ func BenchmarkGetFormatErasureInQuorum(b *testing.B) {
 	}
 }
 
-// Tests formatErasureGetDeploymentID()
-func TestGetErasureID(t *testing.T) {
-	setCount := 2
-	setDriveCount := 8
-
-	format := newFormatErasureV3(setCount, setDriveCount)
-	format.Erasure.DistributionAlgo = formatErasureVersionV2DistributionAlgoV1
-	formats := make([]*formatErasureV3, 16)
-
-	for i := 0; i < setCount; i++ {
-		for j := 0; j < setDriveCount; j++ {
-			newFormat := format.Clone()
-			newFormat.Erasure.This = format.Erasure.Sets[i][j]
-			formats[i*setDriveCount+j] = newFormat
-		}
-	}
-
-	// Return a format from list of formats in quorum.
-	quorumFormat, err := getFormatErasureInQuorum(formats)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check if the reference format and input formats are same.
-	var id string
-	if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
-		t.Fatal(err)
-	}
-
-	if id == "" {
-		t.Fatal("ID cannot be empty.")
-	}
-
-	formats[0] = nil
-	if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
-		t.Fatal(err)
-	}
-	if id == "" {
-		t.Fatal("ID cannot be empty.")
-	}
-
-	formats[1].Erasure.Sets[0][0] = "bad-uuid"
-	if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
-		t.Fatal(err)
-	}
-
-	if id == "" {
-		t.Fatal("ID cannot be empty.")
-	}
-
-	formats[2].ID = "bad-id"
-	if _, err = formatErasureGetDeploymentID(quorumFormat, formats); !errors.Is(err, errCorruptedFormat) {
-		t.Fatalf("Unexpected error %s", err)
-	}
-}
-
 // Initialize new format sets.
 func TestNewFormatSets(t *testing.T) {
 	setCount := 2