Remove all references to pthread.

src/e-server:
	* src/RspConnection.cpp (RspConnection::rspInit): Remove
	references to pthread_mutex_lock/pthread_mutex_unlock.
	(bool RspConnection::rspConnect): Likewise.
	(bool RspConnection::isConnected): Likewise.
	(bool RspConnection::getPkt): Likewise.
	* src/TargetControlHardware.cpp
	(TargetControlHardware::readBurst): Likewise.
	(TargetControlHardware::writeBurst): Likewise.
	(TargetControlHardware::platformReset): Likewise.
	(TargetControlHardware::readMem): Likewise.
	(TargetControlHardware::writeMem): Likewise.
	* src/main.cpp: Don't include pthread.h