Make infill overlap depend on line width

Paul said this way was a better default for all our profiles.

Contributes to issue CURA-892.

resources/machines/fdmprinter.json

@@ -588,7 +588,7 @@
                     "default": 10,
                     "min_value": "0",
                     "max_value_warning": "100",
-                    "inherit_function": "10 if infill_sparse_density < 95 else 0",
+                    "inherit_function": "wall_line_width * 0.1",
                     "visible": false
                 },
                 "infill_wipe_dist": {

resources/profiles/ultimaker2+/pla_0.25_normal.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 22
-infill_overlap = 0.022
 infill_wipe_dist = 0.1
 retraction_amount = 6
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.4_fast.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 18
-infill_overlap = 0.035
 infill_wipe_dist = 0.2
 retraction_amount = 5.5
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.4_high.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 22
-infill_overlap = 0.035
 infill_wipe_dist = 0.2
 retraction_amount = 5.5
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.4_normal.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 20
-infill_overlap = 0.035
 infill_wipe_dist = 0.2
 retraction_amount = 5.5
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.4_ulti.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 25
-infill_overlap = 0.035
 infill_wipe_dist = 0.2
 retraction_amount = 5.5
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.6_normal.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 20
-infill_overlap = 0.053
 infill_wipe_dist = 0.3
 retraction_amount = 6
 retraction_min_travel = 0.5

resources/profiles/ultimaker2+/pla_0.8_normal.curaprofile

@@ -15,7 +15,6 @@ travel_compensate_overlapping_walls_enabled = True
 skin_no_small_gaps_heuristic = False
 top_bottom_pattern = lines
 infill_sparse_density = 20
-infill_overlap = 0.07
 infill_wipe_dist = 0.4
 retraction_amount = 6
 retraction_min_travel = 0.5