Remove doctest from STM builds

Firmware/MotorControl/main.cpp

@@ -126,16 +126,8 @@ void vApplicationIdleHook(void) {
 }
 }
 
-#include <doctest.h>
 int odrive_main(void) {
 
-doctest::Context context;
-
-auto vals = context.run();
-while(vals){
-
-}
-
 #if HW_VERSION_MAJOR == 3 && HW_VERSION_MINOR >= 3
     if (board_config.enable_i2c_instead_of_can) {
         // Set up the direction GPIO as input