remove redundant overwrites

PP-115

resources/definitions/ultimaker2_plus.def.json

@@ -34,9 +34,6 @@
         "layer_height_0": {
             "value": "round(machine_nozzle_size / 1.5, 2)"
         },
-        "line_width": {
-            "value": "machine_nozzle_size"
-        },
         "speed_support": {
             "value": "speed_wall_0"
         },

resources/definitions/ultimaker2_plus_connect.def.json

@@ -60,7 +60,6 @@
         "speed_infill": { "value": "speed_print" },
         "speed_wall_x": { "value": "speed_wall" },
         "layer_height_0": { "value": "round(machine_nozzle_size / 1.5, 2)" },
-        "line_width": { "value": "machine_nozzle_size" },
         "optimize_wall_printing_order": { "value": "True" },
         "zig_zaggify_infill": { "value": "gradual_infill_steps == 0" },
         "speed_support": { "value": "speed_wall_0" },