Remove support margin setting, it is not really needed to configure this.

Cura/cura_sf/fabmetheus_utilities/settings.py

@@ -240,7 +240,7 @@ def getProfileInformation():
 			'Support_Gap_over_Perimeter_Extrusion_Width_ratio': calcSupportDistanceRatio,
 			'Support_Material_Choice_': storedSetting('support'),
 			'Support_Minimum_Angle_degrees': DEFSET,
-			'Support_Margin_mm': storedSettingFloat('support_margin'),
+			'Support_Margin_mm': '3.0',
 		},'skirt': {
 			'Skirt_line_count': storedSetting("skirt_line_count"),
 			'Convex': "True",

Cura/gui/expertConfig.py

@@ -44,8 +44,6 @@ class expertConfigWindow(configBase.configWindowBase):
 		validators.validFloat(c, 0.0)
 		c = configBase.SettingRow(left, "Distance from object (mm)", 'support_distance', '0.5', 'Distance between the support structure and the object. Empty gap in which no support structure is printed.')
 		validators.validFloat(c, 0.0)
-		c = configBase.SettingRow(left, "Extra margin (mm)", 'support_margin', '3.0', 'Extra margin which is used to extend the support lines outwards. A margin of 0 generates support structure only directly underneath the model.')
-		validators.validFloat(c, 0.0)
 
 		configBase.TitleRow(right, "Infill")
 		c = configBase.SettingRow(right, "Infill pattern", 'infill_type', ['Line', 'Grid Circular', 'Grid Hexagonal', 'Grid Rectangular'], 'Pattern of the none-solid infill. Line is default, but grids can provide a strong print.')

Cura/util/profile.py

@@ -53,7 +53,6 @@ profileDefaultSettings = {
 	'fill_overlap': '15',
 	'support_rate': '50',
 	'support_distance': '0.5',
-	'support_margin': '3.0',
 	'joris': 'False',
 	'enable_skin': 'False',
 	'enable_raft': 'False',