Revert "fix 8ch extra test tip slot"

This reverts commit 7a32726.

Author: ryanthecoder

hardware-testing/hardware_testing/gravimetric/protocol_replacement/8ch50_extra.csv

@@ -1,30 +1,30 @@
-name,gravimetric-ot3-p50-multi,,,,
-increment,FALSE,,,,
-mount,left,,,,
-pipette,50,8,,,
-tips,50,50,,,
-trials,10,,,,
-return_tip,FALSE,,,,
-touch_tip,FALSE,,,,
-liquid,water,Deionized water,#0000ff,100000,
-tipracks_20ul,,,,,
-tipracks_50ul,D2,D3,C2,B2,B3
-tipracks_200ul,,,,,
-tipracks_1000ul,,,,,
-labware_on_scale,radwag_pipette_calibration_vial,A1,,,
-slot_scale,C1,,,,
-volumes_to_test_20ul,,,,,
-volumes_to_test_50ul,1,50,,,
-volumes_to_test_200ul,,,,,
-volumes_to_test_1000ul,,,,,
-extra_volumes_to_test_20ul,,,,,
-extra_volumes_to_test_50ul,10,,,,
-extra_volumes_to_test_200ul,,,,,
-extra_volumes_to_test_1000ul,,,,,
-blank_trials,10,,,,
-scale_delay,10,,,,
-submerge_depth,-1.5,,,,
-is_extra,TRUE,,,,
-retract_discontinuity,20,,,,
-disc_ver_cuttoff,35,,,,
-gantry_speed,40,,,,
+name,gravimetric-ot3-p50-multi,,,,,
+increment,FALSE,,,,,
+mount,left,,,,,
+pipette,50,8,,,,
+tips,50,50,,,,
+trials,10,,,,,
+return_tip,FALSE,,,,,
+touch_tip,FALSE,,,,,
+liquid,water,Deionized water,#0000ff,100000,,
+tipracks_20ul,,,,,,
+tipracks_50ul,D2,D3,C2,C3,B2,B3
+tipracks_200ul,,,,,,
+tipracks_1000ul,,,,,,
+labware_on_scale,radwag_pipette_calibration_vial,A1,,,,
+slot_scale,C1,,,,,
+volumes_to_test_20ul,,,,,,
+volumes_to_test_50ul,1,50,,,,
+volumes_to_test_200ul,,,,,,
+volumes_to_test_1000ul,,,,,,
+extra_volumes_to_test_20ul,,,,,,
+extra_volumes_to_test_50ul,10,,,,,
+extra_volumes_to_test_200ul,,,,,,
+extra_volumes_to_test_1000ul,,,,,,
+blank_trials,10,,,,,
+scale_delay,10,,,,,
+submerge_depth,-1.5,,,,,
+is_extra,TRUE,,,,,
+retract_discontinuity,20,,,,,
+disc_ver_cuttoff,35,,,,,
+gantry_speed,40,,,,,