remove redundant 0 in make chan (#2101)

* remove 0 in make(chan,0) to fix go-staticcheck problem

Author: nonbutAworker

echo_test.go

@@ -961,7 +961,7 @@ func TestEchoStartTLSByteString(t *testing.T) {
 			e := New()
 			e.HideBanner = true
 
-			errChan := make(chan error, 0)
+			errChan := make(chan error)
 
 			go func() {
 				errChan <- e.StartTLS(":0", test.cert, test.key)
@@ -999,7 +999,7 @@ func TestEcho_StartAutoTLS(t *testing.T) {
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
 			e := New()
-			errChan := make(chan error, 0)
+			errChan := make(chan error)
 
 			go func() {
 				errChan <- e.StartAutoTLS(tc.addr)