removing multiple iic/uart parts from virtquad

quad/src/virt_quad/hw_impl_unix.c

@@ -28,7 +28,6 @@ struct RCReceiverDriver create_unix_rc_receiver() {
 struct I2CDriver create_unix_i2c() {
   struct I2CDriver i2c;
   i2c.state = NULL;
-  i2c.busId = 0;
   i2c.reset = unix_i2c_reset;
   i2c.write = unix_i2c_write;
   i2c.read = unix_i2c_read;

quad/src/virt_quad/main.c

@@ -35,7 +35,7 @@ int setup_hardware(hardware_t *hardware) {
   hardware->i2c_1 = create_unix_i2c();
   hardware->rc_receiver = create_unix_rc_receiver();
   hardware->motors = create_unix_motors();
-  hardware->uart = create_unix_uart();
+  hardware->uart_0 = create_unix_uart();
   hardware->global_timer = create_unix_global_timer();
   hardware->axi_timer = create_unix_axi_timer();
   hardware->mio7_led = create_unix_mio7_led();