Revert "[iip15] fix caused an error within EVM when the contract was …

…not registered (#3929)"

This reverts commit 8eb196d.

blockindex/sgd_indexer.go

@@ -444,10 +444,6 @@ func (sgd *sgdRegistry) CheckContract(ctx context.Context, contract string, heig
 	}
 	sgdIndex, err := sgd.getSGDIndex(addr.Bytes())
 	if err != nil {
-		// if the contract is not registered, return nil to prevent the evm from throwing error
-		if errors.Cause(err) == db.ErrNotExist || errors.Cause(err) == db.ErrBucketNotExist {
-			return nil, 0, false, nil
-		}
 		return nil, 0, false, err
 	}
 

blockindex/sgd_indexer_test.go

@@ -148,7 +148,7 @@ func TestNewSGDRegistry(t *testing.T) {
 			blk := createTestingBlock(builder, 4, h, exec, logs)
 			r.NoError(sgdRegistry.PutBlock(ctx, blk))
 			receiver, percentage, isApproved, err := sgdRegistry.CheckContract(ctx, registerAddress.String(), 4)
-			r.NoError(err)
+			r.ErrorContains(err, "not exist in DB")
 			r.Nil(receiver)
 			r.False(isApproved)
 			hh, err := sgdRegistry.Height()

e2etest/sgd_registry_test.go

@@ -180,6 +180,7 @@ func TestSGDRegistry(t *testing.T) {
 				"c375c2ef0000000000000000000000005b38da6a701c568545dcfcb03fcb875f56beddc4",
 			},
 			checkContractExpect: checkContractExpectation{
+				errorContains:   "not exist in DB",
 				contractAddress: registerAddress.String(),
 			},
 		},
@@ -189,6 +190,7 @@ func TestSGDRegistry(t *testing.T) {
 				"07f7aafb0000000000000000000000005b38da6a701c568545dcfcb03fcb875f56beddc4",
 			},
 			checkContractExpect: checkContractExpectation{
+				errorContains:   "not exist in DB",
 				contractAddress: registerAddress.String(),
 			},
 		},
@@ -226,6 +228,7 @@ func TestSGDRegistry(t *testing.T) {
 				"07f7aafb0000000000000000000000005b38da6a701c568545dcfcb03fcb875f56beddc4",
 			},
 			checkContractExpect: checkContractExpectation{
+				errorContains:   "not exist in DB",
 				contractAddress: registerAddress.String(),
 			},
 		},