Remove leftover debug prints from Pot.process()

The unconditional p_loss/theta_amb/temp prints (left over from the
heat-loss-units fix) ran every tick, spamming stdout in both the
server and every demo script. Drop them and check off the matching
TODO.md item.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/plant/pot.py

@@ -53,9 +53,6 @@ class Pot(APlant):
 		p_loss = self.L * self.M * (self.temp - self.theta_amb)
 		self.p_pot = self.delay.get() - p_loss
 
-		print(f"p_loss: {p_loss}")
-		print(f"theta_amb: {self.theta_amb}")
-		print(f"temp: {self.temp}")
 		self.temp = min(100, self.temp + self.p_pot/(self.M * self.C) * self.dt)
 
 	def is_activated(self):