No need to wait after Wire.requestFrom(). #72

Module::read waits after calling HardwareI2C::requestFrom() and clearing the buffer:

Both are not needed.

HardwareI2C::requestFrom() is either successful or it fails. It does a full I2C session with a START and STOP condition. When the HardwareI2C::requestFrom() function has returned, the I2C bus is idle. After that, it is not possible to wait from something with a idle I2C bus.

HardwareI2C::available() does not check the I2C bus, it checks the amount of read data in the software buffer in the Wire library.
Therefore, only the line with the HardwareI2C::requestFrom() function call is needed here.

This is not needed:

The Wire library does not use a stream of data, it uses packages. The buffers are cleared before each session on the I2C bus.