fix readers removal in examples (#26)

examples/server-tls/main.go

@@ -144,6 +144,8 @@ func handleConn(conn *gortsplib.ServerConn) {
 	if conn == publisher {
 		publisher = nil
 		sdp = nil
+	} else {
+		delete(readers, conn)
 	}
 }
 

examples/server-udp/main.go

@@ -143,6 +143,8 @@ func handleConn(conn *gortsplib.ServerConn) {
 	if conn == publisher {
 		publisher = nil
 		sdp = nil
+	} else {
+		delete(readers, conn)
 	}
 }
 

examples/server/main.go

@@ -143,6 +143,8 @@ func handleConn(conn *gortsplib.ServerConn) {
 	if conn == publisher {
 		publisher = nil
 		sdp = nil
+	} else {
+		delete(readers, conn)
 	}
 }
 

serverconf_test.go

@@ -287,6 +287,8 @@ func (ts *testServ) handleConn(conn *ServerConn) {
 	if conn == ts.publisher {
 		ts.publisher = nil
 		ts.sdp = nil
+	} else {
+		delete(ts.readers, conn)
 	}
 }