Revert "Implement notifies for transfer plugin (#3972)" (#3995)

This reverts commit 68f1dd5ddf.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

test/auto_test.go

@@ -120,9 +120,7 @@ func TestAutoAXFR(t *testing.T) {
 		auto {
 			directory ` + tmpdir + ` db\.(.*) {1}
 			reload 1s
-		}
-		transfer {
-			to *
+			transfer to *
 		}
 	}`
 

test/file_upstream_test.go

@@ -29,7 +29,9 @@ www 3600 IN CNAME www.example.net.
 	defer rm()
 
 	corefile := `.:0 {
-		file ` + name + ` example.org
+		file ` + name + ` example.org {
+			upstream
+		}
 		hosts {
 			10.0.0.1 www.example.net.
 			fallthrough
@@ -86,8 +88,12 @@ www 3600 IN A   127.0.0.53
 	defer rm2()
 
 	corefile := `.:0 {
-		file ` + name + ` example.org
-		file ` + name2 + ` foo.example.org
+		file ` + name + ` example.org {
+			upstream
+		}
+		file ` + name2 + ` foo.example.org {
+			upstream
+		}
 	}`
 
 	i, udp, _, err := CoreDNSServerAndPorts(corefile)

test/file_xfr_test.go

@@ -29,9 +29,8 @@ func TestLargeAXFR(t *testing.T) {
 	defer rm()
 
 	corefile := `example.com:0 {
-		file ` + name + `
-		transfer {
-			to *
+		file ` + name + ` {
+			transfer to *
 		}
 	}`
 

test/secondary_test.go

@@ -43,9 +43,7 @@ func TestSecondaryZoneTransfer(t *testing.T) {
 
 	corefile := `example.org:0 {
 		file ` + name + ` {
-		}
-		transfer {
-			to *
+			transfer to *
 		}
 	}`
 
@@ -94,9 +92,7 @@ func TestIxfrResponse(t *testing.T) {
 
 	corefile := `example.org:0 {
 		file ` + name + ` {
-		}
-		transfer {
-			to *
+		transfer to *
 		}
 	}`