fix(api): raise error if fast home is stalling (#14609)

Closes RQA-2312

We previously swallowed collision errors during fast home move and
proceeded to slow home because we used to not handle encoder overflow
properly and would mistakenly raise. Now that we have fixed those
encoder issues, we should actually raise the error when the motor
stalls.

api/src/opentrons/hardware_control/ot3api.py

@@ -33,9 +33,6 @@
     pipette_load_name_conversions as pipette_load_name,
 )
 from opentrons_shared_data.robot.dev_types import RobotType
-from opentrons_shared_data.errors.exceptions import (
-    StallOrCollisionDetectedError,
-)
 
 from opentrons import types as top_types
 from opentrons.config import robot_configs
@@ -1531,19 +1528,12 @@ async def _home_axis(self, axis: Axis) -> None:
                 axis_home_dist = 20.0
             if origin[axis] - target_pos[axis] > axis_home_dist:
                 target_pos[axis] += axis_home_dist
-                try:
-                    await self._backend.move(
-                        origin,
-                        target_pos,
-                        speed=400,
-                        stop_condition=HWStopCondition.none,
-                    )
-                except StallOrCollisionDetectedError:
-                    self._log.warning(
-                        f"Stall on {axis} during fast home, encoder may have missed an overflow"
-                    )
-                    await self.refresh_positions(acquire_lock=False)
-
+                await self._backend.move(
+                    origin,
+                    target_pos,
+                    speed=400,
+                    stop_condition=HWStopCondition.none,
+                )
             await self._backend.home([axis], self.gantry_load)
         else:
             # both stepper and encoder positions are invalid, must home